Rejecting unknown addresses at connection level...

Our server currently bounces unknown addresses sent to it, but our mail appliance needs to see an immediate 550 error when an invalid RCPT TO is sent to our mail server.
I am unsure as to how to do this with the PostFix config file. I suspect it has something to do with localrecipientmaps but I'm not sure. Can anyone help?

Hello. Running a publicly-available mail server is a serious endeavo(u)r.
Currently your mail-server is misconfigured:
You _should not bounce those messages_ [!] You should be rejecting the messages instead, which
Postfix as configured out of the box by Apple should do, and - as well, by default - it will use a 550 code when rejecting those messages.
From the default, supplied /etc/postfix/main.cf :
# REJECTING MAIL FOR UNKNOWN LOCAL USERS
# The localrecipientmaps parameter specifies optional lookup tables
# with all names or addresses of users that are local with respect
# to $mydestination, $inet_interfaces or $proxy_interfaces.
# If this parameter is defined, then the SMTP server will reject
# mail for unknown local users. This parameter is defined by default.
# The unknownlocal_recipient_rejectcode specifies the SMTP server
# response code when a recipient domain matches $mydestination or
# ${proxy,inet}_interfaces, while $localrecipientmaps is non-empty
# and the recipient address or address local-part is not found.
# The default setting is 550 (reject mail) but it is safer to start
# with 450 (try again later) until you are certain that your
# localrecipientmaps settings are OK.
unknownlocal_recipient_rejectcode = 550

Similar Messages

Rejecting unknown recipients at connection level...

I have modified /etc/postfix/main.cf to reject unknown recipients combined with following additions:
/etc/postfix/virtual
[email protected] com_mydomain1_user1
[email protected] com_mydomain2_user1
[email protected] com_mydomain1_user2
[email protected] com_mydomain2_user2
/etc/postfix/virtual_domains
mydomain1.com allow
mydomain2.com allow
/etc/postfix/virtual_domains_dummy
dummy.local allow
and it works as long as the "user" part is unknown within my known domains and
I do get 550 reply for those unknown recipients.
However, if "domain" part is also unknown then I get 250 reply and
am not sure what is missing in my configuration.
Here is a copy of my main.cf:
queue_directory = /private/var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
mail_owner = _postfix
unknown_local_recipient_reject_code = 550
debug_peer_level = 2
debugger_command =
PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
xxgdb $daemon_directory/$process_name $process_id & sleep 5
sendmail_path = /usr/sbin/sendmail
newaliases_path = /usr/bin/newaliases
mailq_path = /usr/bin/mailq
setgid_group = _postdrop
html_directory = no
manpage_directory = /usr/share/man
sample_directory = /usr/share/doc/postfix/examples
readme_directory = /usr/share/doc/postfix
mydomain_fallback = localhost
message_size_limit = 52428800
myhostname = mail.mydomain.com
mailbox_transport = cyrus
mailbox_size_limit = 0
enable_server_options = yes
inet_interfaces = all
smtpd_client_restrictions = permit_mynetworks reject_rbl_client cbl.abuseat.org reject_rbl_client dul.dnsbl.sorbs.net permit
maps_rbl_domains =
mydomain = mydomain.com
virtual_transport = lmtp:unix:/var/imap/socket/lmtp
virtual_mailbox_domains = hash:/etc/postfix/virtual_domains_dummy
virtual_alias_domains = hash:/etc/postfix/virtual_domains
virtual_alias_maps = hash:/etc/postfix/virtual
content_filter = smtp-amavis:[127.0.0.1]:10024
owner_request_special = no
recipient_delimiter = +
alias_maps = hash:/etc/aliases
mydestination = $myhostname,localhost.$mydomain,localhost,mail.mydomain.com,mydomain.com
smtpd_use_tls = yes
smtpd_enforce_tls = no
smtpd_tls_cert_file = /etc/certificates/Default.crt
smtpd_tls_key_file = /etc/certificates/Default.key
local_recipient_maps = proxy:unix:passwd.byname $alias_maps
luser_relay =
smtpd_sasl_auth_enable = yes
smtpd_use_pw_server = yes
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination,permit
smtpd_pw_server_security_options = login
smtpd_reject_unlisted_recipient = yes
mynetworks = 127.0.0.0/8
I followed instruction from following link:
http://downloads.topicdesk.com/docs/Making_Virtual_Mail_Users_in_OS_X_Server.pdf
Appreciate any input to resolve this issue.
Thanks,
John

Here is some more details on what I mean by 250 and 550 replies.
$ telnet mail.mydomain.com 25
Trying 127.0.0.1...
Connected to mail.mydomain.com.
Escape character is '^]'.
220 mail.mydomain.com ESMTP Postfix
mail from: <[email protected]>
250 2.1.0 Ok
rcpt to: <[email protected]>
250 2.1.5 Ok
rcpt to: <[email protected]>
550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual alias table
rcpt to: <[email protected]>
250 2.1.5 Ok
Is the last 250 reply normal or should I get 550 reply if mail server is setup properly?
Is there something missing in my configuration that does not prevent an unknown user from an unknown domain from submitting?
Appreciate any comment.
John

Creation of connection object address on BP level when saving contract

Dears,
Does anyone here know how to deactivate the creation of an extra address on BP level when you save your contract?
Currently when I create a BP with 10 contracts on different Ibases in CRM, IS-U creates 10 addresses (of usage CON_OBJECT) for this BP. This change on the BP often fails in the replication due to problems with the address guids...
Thanks in advance,
Wim

Already found it in move-in customizing...

Reject IP address and error 3299

Hello,
I use the Adobe Media Server 5 standard but I have a problem to reject some IP adresses, when I change the Adaptator.xml all the address can connect to the server ,I restarted "AMSHttpd" and "Adobe Media Server" :







<Allow>10.1.1.1</Allow>




   


<Deny>all</Deny>





<Order>Allow,Deny</Order>
And when I restart the server the stream is ok but in Event Viewer I see that :
The Apache service named reported the following error:
>>> [Thu Jan 23 14:34:36 2014] [info] mod_jithttp - AMS installation path: "C:\\Program Files\\Adobe\\Adobe Media Server 5\\" .
Sorry for my English,
Thanks

Hello,
I use the Adobe Media Server 5 standard but I have a problem to reject some IP adresses, when I change the Adaptator.xml all the address can connect to the server ,I restarted "AMSHttpd" and "Adobe Media Server" :







<Allow>10.1.1.1</Allow>




   


<Deny>all</Deny>





<Order>Allow,Deny</Order>
And when I restart the server the stream is ok but in Event Viewer I see that :
The Apache service named reported the following error:
>>> [Thu Jan 23 14:34:36 2014] [info] mod_jithttp - AMS installation path: "C:\\Program Files\\Adobe\\Adobe Media Server 5\\" .
Sorry for my English,
Thanks

How to retrive ip address of connected device in shell script or applescript

Hi all,
From Mac PC, how to get ip address of connected device in shell script or applescript.
there is any way to launch an app on ipad in shell script or applescript.
thank you in advance for your help
Mickael

Hi all,
From Mac PC, how to get ip address of connected device in shell script or applescript.
there is any way to launch an app on ipad in shell script or applescript.
thank you in advance for your help
Mickael

Delivery address on item level in Sales Order causes delivery split

Hi all,
I have an issue where our customer is sending in EDI-orders with delivery address on item level. This generates different SAP addresses for each line in the Sales Order later causing a delivery split in VL01n. Normally a SO contains 20 items where 10 needs to go to one physical address and the other 10 to another. What I would like is to only split on the physical address and not on each SAP address. E.g. 2 deliveries created instead of 20.
Its ECC 5.0.
Anyone has experience to share on this issue?
Thanks
BR
Peter

We had similar issue , there will be confirmed quantity but the requirement will not transfer to MRP , We used Item category configuration ( Copied new item category assignment and it should behave as Inquiry item category)
Check OVZ7 T code for customizing the u201CDelivery Blocku201D in your sales document to block Confirmation block
Check the customizing OVZ8: if the flag Transfer of Requirement
Transfer of requirements of the requirement class should be ON.
In the sales order the requirement type is determined by the combination sales order item + MRP type.
Refer SAP Help URL below
[Setting a Delivery Block |http://help.sap.com/saphelp_470/helpdata/en/93/744bf2546011d1a7020000e829fd11/content.htm]

Problem in Overwriting SHIP-TO-ADDRESS at itme level.

Hi Experts,
We are facing problem in Overwriting SHIP-TO-ADDRESS at itme level.
Issue : Item level ship to address cannot be overwritten when item and header shipping is same.
if item and header shipping address different then item shipping address can be overwritten.
Can any one help me to solve this issue.?
What are all the function modules / BADIs used for handling the shipping address..?
Regards,
Murugan Arumugam.

Hello Murugan,
Sorry for the late reply, but changing ship-to party address at item level is standard behaviour in the B2B webshop. Yes, there was a bug in CRM ISA v4.0 when a change to the header level ship-to party address didn't flow through to an already available item ship-to party address but only to newly added items. This was rectified in newer versions of ISA / eCommerce.
Cheers,
Ashok.

5.1.0 - Unknown address error 554-'5.7.1 Access denied'

Hi
Over the last 5 days I my users have been getting alot of undeliverable's on delivery notifications:
Subject: Delivery Status Notification (Failure)
From: "Mail Delivery System" <[email protected]>
Date: Sat, March 14, 2009 08:33
To: SRS0=YH6uMo=7N=mydomain.com=[email protected]
The following message to <[email protected]> was undeliverable.
The reason for the problem:
5.1.0 - Unknown address error 554-'5.7.1 Access denied'
The original email is gettting through, its just we get an undeliverable on the delivery notification. All users use BIS with various providers, Orange UK, Vodacom SA, Vodafone UK. All the undeliverable are to internal domains the problem doesn't seem to occur with external domains.
Can anyone help me please ?
Thanks
Kev

Hi
Anyone able to help me please ?
Kev

What's my video adapter's IO address and interrupt level?

I installed solaris8.0 for intel platform. When I logged in as root, the graphic didn't appear normally.
I ran the program KConfiguration, and didn't find the item named "Standard VGA 256 colors". And the program let me input the video adapter's I/O address and interrupt level when I chose to add a new device.
My adapter is S3 Virdge or something like that. It do work on window2000. The windows operating system never let me input the I/O address and interrupt level, and I think it's "Plug & Play". Now, what can I input in the KConfiguration?
By the way, if the graphic is wrong,and I can do nothing on the computer,how can I install the adapter's driver?

http://www.zvenigorod.ru/solaris8x86/hcl.htm

SG200-08 Loosing MAC addresses of connected devices

I have a SG200-08 Switch that has in the last month been acting up with certain types of traffic. On June 7, 2013 I installed the 1.0.6.2 firmware upgrading from 1.0.5.1. Updating the firmware has not helped.
Last week Tuesday a server that was connected to that switch disappeared from the network, looking at the trouble I had to reboot the server and traffic began to flow. After rebooting the server I found only 1 of 2 MAC addresses from the 1 NIC showing up on the port.
Today I have a Xerox Workcenter connected to the switch on another port and while working on changing settings on the device I stopping being able to reach the device, could not even ping it. I went into the switch port showed active, but no MAC address found in the dynamic table for that port. After rebooting the switch I could reach the Xerox again.
I rebooted the switch on Friday near the end of the day and it was doing better till this morning, all MAC addresses for connected devices were showing up OK. Is the device defective? It had been working OK previously, it is connected to another switch on port 1, and that shows a proper table of dynamic MAC addresses. In both cases of loosing a device it was being used not dormant or in any kind of low power mode.

Dear Michael,
Thank you for reaching Small Business Support Community.
Based on the symptoms; SG200 working fine before, it seems to work ok after reboot, and latest firmware already installed. It seems to me like a hardware failure but still, in order to confirm, it would be a good idea to restore to factory conditions and configure it manually again. Just in case that does not help I suggest you to contact the Small Business Support Center for further assistance;
https://www.cisco.com/en/US/support/tsd_cisco_small_business_support_center_contacts.html
Please let me know if there is anything I can assist you with in the meantime.
Kind regards,
Jeffrey Rodriguez S. .:|:.:|:.
Cisco Customer Support Engineer
*Please rate the Post so other will know when an answer has been found.

Error Type unknown address 00083578

Hi,
Does anyone know what "Error Type unknown address 00083578" means?
Thanks

Hi,
As for the other error message I posted, It's happens apparently randomly (although nothing is random, it's just that I can't identify the pattern) when I use "debug VBS script".
I didn't save a print screen, if I get it again I'll post a print screen

Why am I suddenly receiving the message: 5.1.0 - Unknown address error 501-"5.1.8 Bad sender's system address" I am only getting it for Mozilla Thunderbird

In the past three days, whenever I send a message, it does not go through. Instead, I get the message: 5.1.0 - Unknown address error 501- "5.1.8 Bad sender's system address". I tried downloading the newest version of Thunderbird but it did not work. I do not receive this message when using other software.

I had the look that you suggested. As far as I can tell there are no problems with the user name. Maybe I should check with my email company, Cogeco?

Log connection attempts and source IP address for connections that fail/timeout on RADIUS

How can I log the connection attempts and source IP address for connections that fail RADIUS authentication? I'm using RD Gateway on 2012 R2 in conjunction with Azure Multi-Factor Authentication Server on another 2012 R2 server. When a user fails
multifactor authentication or the authentication times out, all I get is Security event 6273 on the RD Gateway that the radius server did not process the request, and only the radius server's IP is logged. There's nothing logged in TerminalServices-Gateway\Operational
because the TS Gateway hasn't yet processed the connection attempt (all auditing options for RD Gateway are enabled). The MFA/Radius Server is only logging the connection from the TSGateway - it doesn't know the original client's IP address.
I'm looking for the equivalent of an IIS log - somewhere the RD Gateway should log the initial HTTPS connection attempt and the source IP address of the client. I need to be able to track down potentially fraudulent login attempts.

Hi,
Thank you for your posting in Windows Server Forum.
This error might be caused by one of the following conditions:
• The user does not have valid credentials
• The connection method is not allowed by network policy
• The network access server is under attack
• NPS does not have access to the user account database on the domain controller
• NPS log files or the SQL Server database are not available
To perform these procedures, you must be a member of Domain Admins.
Please check for more information:
Event ID 6273 — NPS Authentication Status
http://technet.microsoft.com/en-us/library/cc735399(v=ws.10).aspx
Hope it helps!
Thanks.
Dharmesh Solanki

ISupplier portal - reject action at the shipment level (R11)

Hello,
Supplier can perform Accept, Change or Reject actions at the shipment level. The two first actions are quite straight forward to understand, but could you please advise what are the results of doing a reject? Ther is not much about it in the user guide.
To be more precise, are there any other situations that this information is used, beside that it can be found in the iSupplier Portal? The problem is that we have a very little visibility on the line status while using the standard Purchase Orders Summary forms. And after all lines have been assigned a status by our supplier, the Acceptance Required flag is removed from the PO no matter if there are any rejects on lines or not.
Could you also please advise which database table holds this particular iSupplier portal shipment status information?
Thank you all in advance.
Kamil

Hi,
Form the front end you can ask the user to provide a screen shot of the preferences once the buyer has logged in and it is at the bottom Notifications (Email Style), this is usually set as disabled.
I am not sure what is the exact table, please refer to the previous post with the table name.
Thank you,
Ravi

Server rejected the address

What does it mean when you try to send an outgoing message and you get the "server rejected the address ____" message?? It's odd b/c I tried sending mail to two people, and when I took that other one off the message it went through. This is someone I email regularly, too, so not sure why it would be doing that.
thanks

Was this in the To:, CC:, or BCC: field ?
Have you tried just sending to that one failed one alone?

Rejecting unknown addresses at connection level...

Similar Messages

Maybe you are looking for