ASSP Anti Spam - unable to relay outbound mail

Hi,
I have just set up ASSP and having issues with outbound mail.
I have set up the SMTP connector to use 'internal' and address space as * and using smart host (IP of ASSP server).
On ASSP i have added the exchange server IP under AcceptAllMAIL. That is the only configuration i have added on ASSP for outgoing.
Inbound works perfectly.
Can anyone assist?
This topic first appeared in the Spiceworks Community

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Send connector - e-mails from two domains to distinct anti-spam IPs

I have an Exchange enviroment that has two domains. I want that e-mails sent from a domain do the relay to an anti-spam, and e-mails sent from another domain do the relay to another anti-spam.
Example:
I need to config send connector to send the e-mails from "test1.com" to IP 10.160.190.66 and from "test2.com" to IP 10.160.190.69
How do I do?
I need this because each domain uses distincts anti-spam
Tks.

Hi,
Before going on, I would like to confirm the following information.
What's the version of the Exchange?
Whether the two domains have their own Exchange or share one Exchange?
Thanks
Allen

Anti spam filter Mail Issue

No mail arrived to 10.6.6 Mail Server after enabling "zen.spamhaus.org" spam filter. I can send to any, but receive only from local domain. And after disabling the filter, I can receive smoothly from all domain. My server is not blacklisted and it's firewall working correctly.
Postcon output:
mailsrv:~ admin$ postconf -n
biff = no
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = smtp-amavis:[127.0.0.1]:10024
daemon_directory = /usr/libexec/postfix
debugpeerlevel = 2
enableserveroptions = yes
header_checks = pcre:/etc/postfix/customheaderchecks
html_directory = /usr/share/doc/postfix/html
inet_interfaces = all
mail_owner = _postfix
mailboxsizelimit = 0
mailbox_transport = dovecot
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
mapsrbldomains =
messagesizelimit = 10485760
mydestination = $myhostname, localhost.$mydomain, cmrdi.sci.eg, localhost, $mydomain
mydomain = cmrdi.sci.eg
mydomain_fallback = localhost
myhostname = mailsrv.cmrdi.sci.eg
mynetworks = 127.0.0.0/31,192.168.0.0/16
newaliases_path = /usr/bin/newaliases
queue_directory = /private/var/spool/postfix
readme_directory = /usr/share/doc/postfix
recipient_delimiter = +
relayhost =
sample_directory = /usr/share/doc/postfix/examples
sendmail_path = /usr/sbin/sendmail
setgid_group = _postdrop
smtpsasl_passwordmaps =
smtpdclientrestrictions = permit_mynetworks permitsaslauthenticated permit
smtpdenforcetls = no
smtpdhelorequired = yes
smtpdhelorestrictions = rejectinvalid_helohostname rejectnon_fqdn_helohostname
smtpdpw_server_securityoptions = login,plain,gssapi,cram-md5
smtpdrecipientrestrictions = permitsaslauthenticated permit_mynetworks rejectunauthdestination checkpolicyservice unix:private/policy permit
smtpdsasl_authenable = yes
smtpdtlsCAfile = /etc/certificates/mailsrv.cmrdi.sci.eg.B864F75AEC36A42907A7DBD383E4EA49CF900D97 .chain.pem
smtpdtls_certfile = /etc/certificates/mailsrv.cmrdi.sci.eg.B864F75AEC36A42907A7DBD383E4EA49CF900D97 .cert.pem
smtpdtls_excludeciphers = SSLv2, aNULL, ADH, eNULL
smtpdtls_keyfile = /etc/certificates/mailsrv.cmrdi.sci.eg.B864F75AEC36A42907A7DBD383E4EA49CF900D97 .key.pem
smtpdtlsloglevel = 0
smtpduse_pwserver = yes
smtpdusetls = yes
tlsrandomsource = dev:/dev/urandom
unknownlocal_recipient_rejectcode = 550
virtualaliasdomains = $virtualaliasmaps hash:/etc/postfix/virtual_domains
virtualaliasmaps = hash:/etc/postfix/virtual_users
and the bounce message I receive:
Hi. This is the qmail-send program at mx-relay.netfirms.com.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.
<[email protected]>:
195.43.3.66 does not like recipient.
Remote host said: 554 5.7.1 Service unavailable; Client host [70.35.17.169] blocked using zen.spamhaus.org
Giving up on 195.43.3.66.
Can you find a solution to this.

Hi Dave,
Following are the detailed steps to uninstall Anti-Spam:
Close the EMC (Exchange Management Console).
Open the PowerShell and navigate using the following path: "Program Files\Microsoft\Exchange Server\Scripts".
Run the "uninstall-AntispamAgents.ps1" script as shown in window (with ./ before the script name) below:
Note: You will be prompt to disable and then uninstall each agent of the Anti-spam system like the Connection filtering, content filter, Sender filtering etc.
Restart the "Microsoft Exchange Transport" service in order to apply configuration changes.
Open the Exchange Management Console, and on the Organization configuration list, select
Hub Transport. You will see that the "Anti-Spam" tab has been removed from the Hub Transport properties.
I suggest double check whether you have re-start the Transport service.
More details in the following link:
http://www.petri.com/install-anti-spam-exchange-2007.htm
Thanks

Cannot send mail from newsletter server and Server error: Unable to relay

We have newsletter server. Sometimes we sent mail by our exchange 2010 server. But recently we are unable to send mail to external mail server. we sent mail by newsletter server within a domain now. We need to solve. Pls. check below log file and provide
how to solve it.
Sender ID: [email protected]
our domain: www.silkways.net
LOG:
Status Msg : The email details entered successfully into the database.
Status Msg : The email details entered successfully into the database.
Access Level : 1
MAIL SENT TO : [email protected]
FAILED TO SEND MAIL TO : [email protected]
Error : SMTP Error: The following recipients failed: [email protected]SMTP server error: 5.7.1 Unable to relay

FAILED TO SEND MAIL TO : [email protected]
Error : The following From address failed: [email protected]SMTP server error: 5.5.2 Sender already specified

FAILED TO SEND MAIL TO : [email protected]
Error : SMTP Error: The following recipients failed: [email protected]SMTP server error: 5.7.1 Unable to relay

FAILED TO SEND MAIL TO : [email protected]
Error : The following From address failed: [email protected]SMTP server error: 5.5.2 Sender already specified

FAILED TO SEND MAIL TO : [email protected]
Error : The following From address failed: [email protected]SMTP server error: 4.7.0 Too many errors on this connection, closing transmission channel

FAILED TO SEND MAIL TO : [email protected]
Error : SMTP Error: The following recipients failed: [email protected]SMTP server error: 5.7.1 Unable to relay

FAILED TO SEND MAIL TO : [email protected]
Error : The following From address failed: [email protected]SMTP server error: 5.5.2 Sender already specified


Hi,
Since you are able to send emails to internal domain i assume the application server IP address already allowed into Receive Connector.
To relay application emails to external domain you should enable Externally Secured box in the Authentication Tab of the particular Receive Connector.
Kottees :My Blog Please mark it as an answer if it really helps you.

Javax.mail.SendFailedException: 550 5.7.1 Unable to relay

Hi All,
I am getting the below Exception message when I am executing my JavaMail
program.
nested exception is:
javax.mail.SendFailedException: Invalid Addresses;
nested exception is:
javax.mail.SendFailedException: 550 5.7.1 Unable to relay for [email protected]
Please can anyone help me out.
Regards,
Ravi.

what's wrong to this source code, if try to send mail to local account actually it success, but if i try to send mail eg:[email protected](outside my network) i found error this error to. i had to try not use encode userID/password into base64, but the result doesn't change.
if anyone have solution for this problem, please contact me @ [email protected]
Regards,
agam
error returned by java:
javax.mail.SendFailedException: Invalid Addresses;
nested exception is:
class javax.mail.SendFailedException: 550 Relaying is prohibited
void com.sun.mail.smtp.SMTPTransport.sendMessage(javax.mail.Message, javax.mail.Address[])
import java.util.*;
import java.io.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
import com.sun.mail.smtp.SMTPTransport;
import com.agam198.util.*;
public class PCMMail{
String sMailServer = "";
String sUserID = "";
String sPassword = "";
int iPort = 25;
String sTo = "";
String sFrom = "";
String sCC = "";
Message msg = null;
SMTPTransport transport = null;
Transport trns = null;
public PCMMail(StringPool sPool){
this.sMailServer = sPool.getString("SMTPServer.SERVER");
this.sTo = sPool.getString("SMTPAlert.TO");
this.sFrom = sPool.getString("SMTPAlert.FROM");
this.sCC = sPool.getString("SMTPAlert.CC");
this.sUserID = sPool.getString("SMTPServer.LOGIN");
this.sPassword = sPool.getString("SMTPServer.PASSWORD");
this.iPort = Integer.parseInt(sPool.getString("SMTPServer.PORT"));
initConnection();
public void initConnection(){
try{
System.out.println("MailServer: "+sMailServer);
System.out.println("To: "+sTo);
System.out.println("From: "+sFrom);
System.out.println("CC: "+sCC);
Properties props = new Properties();
props.put("mail.smtp.host", "152.118.89.0");
Session session = Session.getDefaultInstance(props,null);
trns = session.getTransport("smtp");
if(trns == null){
System.out.println("trans is not null");
else
System.out.println("trans null");
trns.connect(sMailServer,Base64.base64Encode ( sUserID ),Base64.base64Encode ( sPassword ));
if(trns.isConnected()){
System.out.println("connected to SMTP SERVER");
else{
System.out.println("not connect");
InternetAddress address = new InternetAddress();
//create a message
msg = new MimeMessage(session);
catch(Exception e){
public void sendMessage(String message){
sendMessage(getFirstLine(message),message);
public void sendMessage(String subject,String message){
try{
//prepare message
msg.setFrom(new InternetAddress(sFrom));
msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(sTo));
msg.setSubject(subject);
msg.setSentDate(new Date());
msg.setText(message);
trns.send(msg);
System.out.println("message sent");
catch(Exception e){
e.printStackTrace();
public String getFirstLine(String message){
BufferedReader buf = new BufferedReader(new StringReader(message));
try{
return buf.readLine();
catch(Exception e){
return " ";
public static void main(String[] args){
StringPool sp = new StringPool();
sp.set("SMTPServer.SERVER","152.118.89.0");
sp.set("SMTPServer.PORT","25");
sp.set("SMTPServer.LOGIN","kiara");
sp.set("SMTPServer.PASSWORD","kiara");
sp.set("SMTPAlert.TO","[email protected]");
sp.set("SMTPAlert.FROM","[email protected]");
sp.set("SMTPAlert.CC","");
PCMMail pcm = new PCMMail(sp);
pcm.sendMessage("subject","message body");
}

Invalid Addresses; nested exception is: class javax.mail.SendFailedException: 550 5.7.1 Unable to relay for

Hi!
I am with a problem during a sending e-mail for 3500
addressees.
In the way it process me of the one error and in log CF
Administrator shows the following error to it:
Invalid Addresses; nested exception is: class
javax.mail.SendFailedException: 550 5.7.1 Unable to relay for
What it could be?
Server Configuration:
Windows 2003 Standard with ColdFusion MX 7.02 (last update)
Best Regards

You need to either authenticate your user or turn on relaying in your SMTP server. See the JavaMail tutorial for how to authenticate

Cannot redirect voice mails: Unable to relay

Hi,
we recently subscribed to office365. Some of our users prefer to redirect their mails to their own email address via a simple redirect rule that applies to all messages. For the most part, it works fine, except that all voicemails are not being
redirected and they bounce back with a '550 5.7.1 Unable to relay' error.
Any advice?
The following is a sample of the exact error message, except, email addresses, dns names, and IP's are fictional:
mail.domain.com rejected your message to the following email addresses:
[email protected]
mail.domain.com gave this error:
Unable to relay
Your message wasn't delivered due to a permission or security issue. It may have been rejected by a moderator, the address may only accept email from certain senders, or another restriction may be
preventing delivery.
Diagnostic information for administrators:
Generating server: CO1PR05MB298.namprd05.prod.outlook.com
[email protected]
mail.domain.com
Remote Server returned '550 5.7.1 Unable to relay'
Original message headers:
Received: from CO1PR05MB330.namprd05.prod.outlook.com (10.141.69.15) by CO1PR05MB298.namprd05.prod.outlook.com (10.141.70.25) with Microsoft SMTP Server (TLS) id 15.0.913.9;
Tue, 8 Apr 2014 14:21:09 +0000 Received: from CO1PR05MB329.namprd05.prod.outlook.com (10.141.69.25) by CO1PR05MB330.namprd05.prod.outlook.com (10.141.69.15) with Microsoft SMTP Server (TLS) id 15.0.913.9; Tue, 8 Apr 2014 14:21:02 +0000
Received: from CO1PR05MB329.namprd05.prod.outlook.com ([127.0.0.1]) by CO1PR05MB329.namprd05.prod.outlook.com ([169.254.15.35]) with Microsoft SMTP Server id 15.00.0898.005; Tue, 8 Apr 2014 14:20:56 +0000 From: 5555555555 To: John Doe
<[email protected]> Subject: Voice Mail (1 second) Thread-Topic: Voice Mail (1 second) Thread-Index: AQHPUzXA/cqBNK6DZkO6hLItkicVSw== Sender: Microsoft Outlook <[email protected]icrosoft.com>
Content-Class: voice X-CallingTelephoneNumber: 5555555555 X-VoiceMessageDuration: 1 X-VoiceMessageSenderName: X-AttachmentOrder: 5555555555 (1 second) Voice Mail.mp3 X-CallID:
[email protected] Date: Tue, 8 Apr 2014 14:20:39 +0000 Message-ID: <[email protected]ok.com>
X-MS-Has-Attach: yes X-Auto-Response-Suppress: All X-MS-Exchange-Inbox-Rules-Loop: [email protected] X-MS-TNEF-Correlator: x-forefront-antispam-report: SFV:SKI;SFS:;DIR:INB;SFP:;SCL:-1;SRVR:CO1PR05MB329;H:CO1PR05MB329.namprd05.prod.outlook.com;FPR:;LANG:;SFV:NSPM;SFS:(10019001)(428001)(189002)(199002)(558084003)(56776001)(47446002)(69226001)(46552001)(76176001)(76576001)(2171001)(97186001)(89836001)(95666003)(59766001)(81542001)(85306002)(83322001)(74662001)(97336001)(56816005)(76796001)(99396002)(31966008)(74876001)(54356001)(54316002)(98676001)(87266001)(95416001)(81342001)(2656002)(90146001)(76786001)(83072002)(47736001)(49866001)(85852003)(74316001)(4396001)(75432001)(47976001)(50986001)(94316002)(93136001)(33646001)(65816001)(81816001)(80976001)(20776003)(93516002)(79102001)(74706001)(87936001)(46102001)(63696002)(74366001)(16236675002)(92566001)(81686001)(53806001)(94946001)(24736002);DIR:OUT;SFP:1102;SCL:1;SRVR:CO1PR05MB330;H:CO1PR05MB329.namprd05.prod.outlook.com;FPR:5C05F2A6.11BB5411.1D618B26.DE60A428.2009E;MLV:sfv;PTR:InfoNoRecords;MX:1;A:1;LANG:;
Resent-From: <[email protected]> x-ms-exchange-parent-message-id: <[email protected]utlook.com> auto-submitted:
auto-generated x-ms-exchange-generated-message-source: Mailbox Rules Agent x-forefront-prvs: 017589626D received-spf: None (: domain.com does not designate permitted sender hosts) Content-Type: multipart/mixed;
boundary="_004_9bc7a70bd0e846d0a76f63bdcd4371d2CO1PR05MB329namprd05pro_" MIME-Version: 1.0 Return-Path:
[email protected] X-OriginatorOrg: companyname.onmicrosoft.com

Hi,
Since you are able to send emails to internal domain i assume the application server IP address already allowed into Receive Connector.
To relay application emails to external domain you should enable Externally Secured box in the Authentication Tab of the particular Receive Connector.
Kottees :My Blog Please mark it as an answer if it really helps you.

Exchange 2010.SP3: Spam in Outbound Mail Queue (mail.que) - How can this be prevented?

I have been suffering from SPAM being generated from a series of sources (this looks internally generated):
Identity: XXXX-Exchange\7\10
Subject: Undeliverable: Daily Health News
Internet Message ID: <[email protected]>
From Address: <>
Status: Ready
Size (KB): 12
Message Source Name: DSN
Source IP: 255.255.255.255
SCL: -1
Date Received: 15/01/2014 09:00:22
Expiration Time: 17/01/2014 09:00:22
Last Error:
Queue ID: XXXX-Exchange\7
Recipients:
[email protected];2;2;;0;CN=Exchange Internet Connector,CN=Connections,CN=Exchange Routing Group (DWBGZMFD01QNBJR),CN=Routing Groups,CN=Exchange Administrative Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=XXXX,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=XXXX,DC=local
XXXX: Refers to domain and naming convention.
Why are these messages being generated? I know these are NDR's.
What can I do about it? Already checked the Recipient filtering is enabled and refreshed it.
I have already cleared down the mail.que file and checked that the Endpoint Protection is in place and up to date.
The anti-spam option is enabled on the Hub Transport of the Organisational Configuration.
This has led to Backscatter.org blacklisting the IP address.
What else can I do about this situation as I have used all Microsoft KB and TechNet solutions to no avail?
Thanks
Paul
Paul.B

Hello,
I think you can also consider the using the Transport Permissions to control the spams:
HOW TO: Prevent annoying spam from your own domain
http://exchangepedia.com/2008/09/how-to-prevent-annoying-spam-from-your-own-domain.html
Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality,
safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.
Thanks,
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact
[email protected]
Simon Wu
TechNet Community Support

Anti-Spam (for Mail) software

Hi All, I see many different types of anti-spam software for the Mail. But not sure what is good to use. Can anyone recommend a good program? I am using MAC Book Pro laptop. Thanks.

SpamSieve http://c-command.com/spamsieve/
is a good one.

Smtp;550 5.7.1 Unable to relay #SMTP#

our dev wrote a script that'll send an email externally but it bounces with the following error:
smtp;550 5.7.1 Unable to relay> #SMTP#
Your message wasn't delivered due to a permission or security issue. It may have been rejected by a moderator, the address may only accept e-mail from certain senders, or another restriction may be preventing delivery.
It works fine if I want to send the email internally tho. The server is on the allowed list on the receive connector and anonymous users is checked in the permissions groups tab
using exchange 2010 SP3

Hi Cinekc,
Besides SSorin's suggestion, I would like to clarify the following things:
1. Please use telnet to port 25 to test SMTP communication. Here is a thread for your reference.
Exchange server unable to send mail outside
http://social.technet.microsoft.com/Forums/exchange/en-US/ce90b2ea-d2d2-4f15-ab56-43da021c52c9/exchange-server-unable-to-send-mail-outside?forum=exchange2010
2. Please contact recipient side to verify if there is any limitation. What's more, I recommend you ask the recipient side add yourdomain.com into "The sender's domain is" exception of Anti-Spam transport rule and check the result.
Here is a thread for your reference.
Exchange 2013 reject message with unintelligible reason
http://social.technet.microsoft.com/Forums/exchange/en-US/e4c19d74-460e-46ff-81bb-e97dedfcec93/exchange-2013-reject-message-with-unintelligible-reason?forum=exchangesvradmin
Hope it helps.
If there are any problems, please feel free to let me know.
Best regards,
Amy
Amy Wang
TechNet Community Support

Unable to whitelist our mail server IP

Hi,
I hope Verizon Support staff will see this message as it is practically our last resort.
Ever since we upgraded our dedicated server used as both web and mail server for the domain kraisoft.com (which inflicted IP address change) all emails sent out from this server to Verizon customers are being rejected with the following bounce message:
host relay.verizon.net[206.46.232.11] refused to talk to me:
571 Email from 69.64.78.50 is currently blocked by Verizon Online's anti-spam system. The email sender or Email Service Provider may visit http://www.verizon.net/whitelist and request removal of the block. 150330
Any attempts to whitelist our server using the above-mentioned form end up within several minutes with seemingy automatic (judging by its uselessness and the time taken to investigate) reply:
Your IP has been blocked because of spam issues or because your ISP indicates that it is dynamically assigned
No Reverse Hostname associated with your IP address.
Once you have addressed any security-related issues on your network, you should contact Verizon Online Security via this form.
Sincerely,
Verizon Online Security
Any attempts to reply to this message, or use "this form", or email [email protected] quoted in the message end in complete and total silence.
Needless to say the IP adress in question - 69.64.78.50 -
1. Does not have any spam issues as it is a freshly assigned IP address for a new dedicated server built a couple of weeks ago (with your rejection started from the day one). The Postfix mailer on the server is configured properly, not an open relay, isn't listed in any of the 100 common blacklists, uses SSL client connections, has SPF records, signs email using DKIM etc.
2. Isn't by any means a dynamic IP. It is a static IP, one of the 4 assigned to the server by the hoster.
3. ANY available tool (online or command-line) will show within seconds that a proper reverse hostname kraisoft.com is assosiated with the IP address in question 69.64.78.50 so the reply is obviously irrelevant.
This is getting extremely frustrating and we'd be very, very grateful if this issue could be escalated to someone who can provide some additional info or resolve the issue.
Thank you.

Your issue has been escalated to a Verizon agent. Before the agent can begin assisting you, they will need to collect further information from you.
Please go to your profile page for the forum, and look in the middle, right at the top where you will find an area titled "My Support Cases". You can reach your profile page by clicking on your name beside your post, or at the top left of this page underneath the title of the board.
Under “My Support Cases” you will find a link to the private board where you and the agent may exchange information. This should be checked on a frequent basis as the agent may be waiting for information from you before they can proceed with any actions.
To ensure you know when they have responded to you, at the top of your support case there is a drop down menu for support case options. Open that and choose "subscribe".
Please keep all correspondence regarding your issue in the private support portal.

Sendmailjpkg.sendmail - 550 5.7.1 Unable to relay

Hi to all,
Oracle 10g database.
We have an application that sends emails (only with one email address), with sendmailjpkg.sendmail,
We've recently installed an exchange 2010 server, and in doing so we've changed the relevant DNS/MX records to point the to new IP address. I changed the new SMTP address in database (in sendmail Java class – props.setProperty (“mail.host”,”NEW SMTP IP”), ...) and everything was ok when we sent email to local domain users, but when database sent to external email users we get this error:
javax.mail.SendFailedException: *550 5.7.1 Unable to relay*
I know what is the problem is, exchange required full authenication to send emails outside the domain with JavaMail, attempt at stopping spam…
But I do not know how to create authenticator class, how to put authentications in sendmail Java class or in my procedure where I use sendmailjpkg.sendmail, or anywhere else ?
Thanks!

Isn't that a Java issue rather than a SQL or PL/SQL issue?

550 5.7.1 Unable to relay to certain provider

I'm having trouble sending e-mail to a certain provider in the NL (KPN) where our e-mail bounces with a 550 5.7.1 error.
I have tried in vein to contact someone at this provider who knew anything about their e-mail/anti spam servers so that is a dead end.
We are relaying our e-mail through a postfix server which is acting as border gateway, there is also an exchange server relaying through this gateway which is unaffected, which means the 'problem' is with GW. (obviously this provider has their servers configured in a poor way or I would not be able to e-mail the rest of the world..)
The e-mail bounces before it gets to the DATA bit and I have narrowed it down to the RCPT TO: line.
RCPT TO:<[email protected]> NOTIFY=SUCCESS,FAILURE ORCPT=rfc822;[email protected]:1:1
More specifically to the ':1:1' bit. Does anyone have any idea what GWIA setting causes it to add this ? I'm pretty sure there are more GroupWise systems in this country that do not seem to be affected or it would be a known issue .. When i look at Exchange it does not add anything after the RCPT TO address.
This is our agents/share/gwia.cfg (with info edited out)
Code:
--home /var/opt/novell/groupwise/mail/domain/wpgate/gwia
--dhome /var/opt/novell/groupwise/mail/domain/wpgate/gwia
--hn GroupWise.domain.nl
--smtp
--nosmtpversion
--mime
--mudas 2
--sd 8
--rd 16
--p 10
--te 2
--tg 5
--tc 5
--tr 5
--td 3
--tt 10
--pt 10
--it 10
--ldapthrd 10
--st 4
--rt 4
--dsn
--dsnage 4
--mh w.x.y.z
--httpport 9850
--xspam

Originally Posted by mrosen
You mean it doesn't remove the orcpt line entirely? In this case, it
must be created by your relay.
You are correct, the ORCPT part is added by the relay if it has not been added by GW.
GWIA w/o DSN delivers as:
RCPT TO:<[email protected]>
GWIA w DSN delivers as:
RCPT TO: <[email protected]> ORCPT=rfc822;[email protected]:1:1 NOTIFY=SUCCESS,FAILURE
the :1:1 bit is the problem though, I have no idea where that's coming from.. I can't find any evidence in the smtp rfc's that its a valid thing to be there... all I know its being added to the string that is validated to check if its a valid recipient address by some mail server setting on what I *think* is exchange and then failing this test.
I can't find any evidence that this :1:1 bit serves any purpose, I can find evidence that its a common thing in GW, I found another post on these forums where :2:1 was added.

Server Response: 550 5.7.1 Unable to relay

SBS 2011 I have exchange 2010,
Internally Outlook send/ Receive working fine-- Local Ip address.
Owa Send/Receive working fine.
But remote user can receive the Emails, But cant send the emails.
Subject 'tes'
Server Error: 550
Server Response: 550 5.7.1 Unable to relay
Server: 'xxx.xxx.xxx.xxx'---- Public IP address
Windows Live Mail Error ID: 0x800CCC79
Protocol: SMTP
Port: 25
Secure(SSL): Yes
How to fix this issue ?

Hi,
Did you create a relay connector to allow to relay in Exchange? About how to create a relay connector, you can refer to the following article.
How to Configure a Relay Connector for Exchange Server 2010
http://exchangeserverpro.com/how-to-configure-a-relay-connector-for-exchange-server-2010/
Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make
sure that you completely understand the risk before retrieving any suggestions from the above link.
To allow a device to use Exchange to relay a message to an outside recipient, you also need the ms-Exch-SMTP-Accept-Any-Recipient attribute.
Get-ReceiveConnector -Identity relayconnector | Add-ADPermission -User "NT AUTHORITY\ANONYMOUS LOGON" -ExtendedRights "ms-Exch-SMTP-Accept-Any-Recipient"
Best regards,
Belinda
Belinda Ma
TechNet Community Support

550 5.7.1 Unable to relay for [probably bogus Email address]

Hello,
My Exchange Server has been reporting numerous instances of the following message (or very similar messages) most days for a couple of weeks or so now:
This is an SMTP protocol log for virtual server ID 1, connection #3. The client at "118.161.64.59" sent a "rcpt" command, and the SMTP server responded with "550 5.7.1 Unable to relay for [email protected] ". The
full command sent was "rcpt TO: <[email protected]>". This will probably cause the connection to fail. For more information, click http://www.microsoft.com/contentredirect .asp
The Email address is unknown, and probably bogus.
What really concerns me is that the messages from yesterday (Sunday!) contained a now defunct Email account from someone who used to work in our London head office, but left about a couple of years ago. To me, this implies that there has been unauthorised
access to the company IT infrastructure - possibly at both sites - and that someone is trying to get our Exchange Server to relay unsolicited / mailicious Emails. The above message suggests that the attempted relaying has not been successful to date, and I
can't find anything out of the ordinary in the SMTP queues or the Exchange logs - but the persistence does concern me.
So, am I reading this correctly? If so, what can I do about it? Or if not, what does it really mean?
Thankyou very much for your help.
Kind regards,
Keith

If your Exchange server is accessible from the Internet, as it would be to allow you to receive SMTP mail unless you have a relay server like an Exchange Edge server, then Spammers will attempt to use it to relay. Your server is correctly rejecting
that, so I don't see a problem. If you're worried about this, then you could contract with a third-party cloud-based message hygiene service like Exchange Online Protection, and the restrict the IP address that can talk to your Exchange server to those
of the hygiene service.
Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

ASSP Anti Spam - unable to relay outbound mail

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