Outgoing email blocked.

For historical reasons my email servers are hosted by a US ISP and I use BT merely for access to the internet. However outgoing email is being blocked - the error message reports that my BT-assigned WAN IP address is blacklisted and can be found on the Realtime Black List server, b.barracudacentral.org.
BT _ why would your IP addresses be blacklisted?
Thank you
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This is a BT customer forum, so messages do not go to BT, however there are a large number of community members here, so there is a good chance you will get help.
If you are on a normal dynamic IP address, then restarting your router normally gives yo a new IP address.
There are some useful help pages here, for BT Broadband customers only, on my personal website.
BT Broadband customers - help with broadband, WiFi, networking, e-mail and phones.

Similar Messages

Outgoing email blocking other emails, won't delete

I have an email in my outbox, that won't send, open or delete and it is blocking all the other outgoing emails I have! Once I click on it to do anything the activity viewer just spins and spins, doesn't time out, and I have to force quit Mail. There is no attachment, the email is blank (or won't load when I click on it), and the size says 1.1MB. What can I do?
iBook G4 Mac OS X (10.3.9)
iBook G4 Mac OS X (10.3.9)

Try deleting it from the hard drive directly -- it should be in:
~/Library/Mail/Mailboxes/Outbox.mbox/Messages
If not, you may have to get more creative. Backup your Mailbox folder and possibly Mail preferences before doing anything creative, though.

OUTGOING EMAILS BLOCKED- I'M LISTED AS SPAMMER

I'm unable to send emails although I can receive them. Spent almost an hour with the chat support line to finally be informed I'm on a spam list as a spammer. I told them I only email to those I know and have had no complaints and receive emails from everyone I email to. The support person informed me that just one person couldn't get me on the list. This is some faulty system used by Verizon and the emails are not investigated or checked. Meanwhile they had me fill out a form and hopefully I'll be able to use my outlook again. It could take days and it has already. The small print on the form I filled out said it's not even a guarantee I'll get the email service back. This is very disrupting and I wonder if others are experiencing this. I'm shopping for another service while I wait.

What is the specific error message you are getting? Is it just an error that comes up, or are you getting a Delivery Failure notification?
The steps to solving the problem depend on where the block is originating.
If a forum member gives an answer you like, give them the Kudos they deserve. If a member gives you the answer to your question, mark the answer as Accepted Solution so others can see the solution to the problem.
"All knowledge is worth having."

Outgoing emails being blocked by spamhaus. Blocking my IP address

Good day
My outgoing emails are being blocked. Spamhaus has blocked my IP address. How do I unblock it? This is the error message that I receive.
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
[email protected]
SMTP error from remote mail server after MAIL FROM:<[email protected]> SIZE=484112:
host mta6.am0.yahoodns.net [98.136.216.26]: 553 5.7.1 [BL21] Connections will not be accepted from 41.76.215.245, because the ip is in Spamhaus's list; see http://postmaster.yahoo.com/550-bl23.html
Please help as this is a business address
Thanks

Your email provider controls the IP address they assign you. Only they can clear the reputation of a blacklisted IP address. Contact them.

Outgoing Emails fails after Port 25 blocked by email administrator

Hi, our email team administrator has blocked the port 25 and restricted user to use SSL port 465 instead. The share point SMTP email setup page only shows TLS encryption check box (no ssl encryption check box available)
Is this a limitation on share point 2010 that only TLS encryption available? Please kindly advice.
Thank you.

Hi Layman,
According to your description, my understanding is that you want to configure the SMTP to use port 465 for outgoing email in SharePoint.
Per my knowledge, Exchange server will secure communication over any port, but will not use SSL, so there is only TLS encryption in SMTP.
To use port 465, we can add the port 465 under Network tab to the Receiver Connector for SharePoint Outgoing email. And then TCP port number on Outbound Connections in
DSMTP Virtual Server properties.
More references:
http://blogs.technet.com/b/tirumals/archive/2012/03/17/step-by-step-configuration-of-outgoing-emails-from-sharepoint-to-microsoft-online.aspx
http://support.microsoft.com/kb/829721/en-us
http://social.technet.microsoft.com/Forums/exchange/en-US/8dc08cf8-8662-4a02-a181-f821e8d59d06/exchange-smtp-using-port-465?forum=exchangesvrgenerallegacy
For more information, you can post your question to the forum for Exchange: http://social.technet.microsoft.com/Forums/exchange/en-US/home?category=exchangeserverlegacy .
More experts will assist you, then you will get more information relation to Exchange.
Best regards.
Thanks
Victoria Xia
TechNet Community Support

Block outgoing email because of VPN server

We have Cisco VPN on ASA for over 4 years. Recently, barracudacentral.org blocks our outgoing email because of these reasons: •Your email server contains a virus and has been sending out spam. •Your email server may be misconfigured. •Your PC may be infected with a virus or botnet software program. •Someone in your organization may have a PC infected with a virus or botnet program. •You may be utilizing a dynamic IP address which was previously utilized by a known spammer. •Your marketing department may be sending out bulk emails that do not comply with the CAN-SPAM Act. •You may have an insecure wireless network which is allowing unknown users to use your network to send spam. •In some rare cases, your recipient's Barracuda Spam Firewall may be misconfigured. This is the undeliverable message: barracudacentral.org rejected your message to the following e-mail addresses and gave this error: Service unavailable; Client host [VPN IP address-illinois.hfc.comcastbusiness.net] blocked using Barracuda Reputation; http://bbl.barracudacentral.com/q.cgi?ip=VPN IP Address The IP address they blocks is our VPN server. Why?

gmail issue
Your post is the 4th one already this morning.
This is a gmail issue, contact them.

Verzon Blocking Outgoing Email Server

Have read on other posts regarding something like this. Its not the port as I have chanced between 25 and 587. There is no set up issue and no I do not need to reinstall Windows.
I have three ISPs due to frequent travel. In the US I am able to send and reveive email from my Verizon account using Outlook without problems. Can even do this using a Verizon compeitor's servie to access the Internet.
When abroad, incoming email using Verizon is OK. Outgoing is blocked. This is consistent.
Can Verizon comment on this? Either admit it and I will find an alternative or provide a solution. A "whitelist" inquiry was made but unanswered. I read on another post where Verizon danced around a FIOS cussomers exact same complain.
You have 2 business days or I'm filing an FCC complaint and encouraging everyone with the same problem to do so. It's not so much the blocking but hte failure to provide a workaround for legitimate use, failure to answer, and inclination to be indifferent while taking money form customers.

If I understand your complaint correctly, you are unable to use Verizon's outgoing server (outgoing.verizon.net) on networks outside of the US.
What error are you getting?
If a forum member gives an answer you like, give them the Kudos they deserve. If a member gives you the answer to your question, mark the answer as Accepted Solution so others can see the solution to the problem.
"All knowledge is worth having."

Dreamhost blocking SMTP outgoing email sent via MiFi 4510L hotspot

I've been using a MiFi 4510L as my only internet connection for about a year, and have been happy with it to date. Dreamhost.com is my email host (and web domain host).
I haven't been using the MiFi for a few days. Today I was unable to send any messages via the MiFi through Dreamhost's SMTP (outgoing email) server. This happens both when sending from my laptop's email client (Apple Mail) and also from my iPhone when WiFi (i.e. the Verizon MiFi connection) is enabled. It's not a mailserver authentication issue -- incoming email works, Dreamhost webmail send and receive works, and I can send from the (AT&T) iPhone with WiFi turned off (i.e. through AT&T's cellular network). I contacted Dreamhost support, who said:
- - - - - (begin Dreamhost response) - - - - -
DreamHost now performs spamhaus RBL look ups when using an smtp client such as Apple mail. This is to prevent spam from leaving our network. The issues you are describing is what happens when you attempt to send email from an internet service provider (ISP) that is on the spamhaus blocking list. Switching from wifi to 3g will change that IP address that we look up prior to sending the email. For the device that is blocked we can only recommend that you contact the ISP and ask them to either give you a different IP address or work to get their IP's delisted.
- - - - - (end Dreamhost response) - - - - -
I take this to mean that Verizon 4G LTE IP addresses have somehow been added to Spamhaus's database. Has anyone experienced this issue with sending email through a Verizon device using Dreamhost SMTP? What are my options?
Message was edited by: John Ciccarelli (New information: Dreamhost suggested using WhatIsMyIP.com to determine my IP address. It returned 166.250.33.162 and sure enough Spamhaus has that in its PBL and XBL lists. However, I'm using Authenticated SMTP (port 587), not the unauthenticated port 25. Are Verizon servers somehow listed on Spamhaus?)
Message was edited by: John Ciccarelli
More research: I repeatedly shut down and powered up the MiFi. Each time up, WhatIsMyIP.com returns a slightly different IP: 166.250.33.162, 166.250.32.186, 166.250.34.151, etc. Lookup shows these IPs are associated with vzwdomain.com or myvzw.com, not surprisingly. So presumably the MiFi gets mapped to a different actual IP each time it connects. The first of these 3 IPs showed up in Spamhaus's PBL and XBL lists; the other two just in the PBL list. Perhaps if I keep powering off/on it'll eventually connect via an IP that isn't on Spamhaus's list.

Are you using Mail app? You need to make sure the Outgoing Mail Server settings are exactly how your ISP recommends. So give them a call.

Inpect and block outgoing emails.

Hello, I am new in Exchange Server Development. My task is to create TransportAgent that can inspect and sometimes block outgoing emails. It is important for me to inspect and block internal emails too(not only emails going out of organization). I need to
support Exchange 2010, 2013.
Thanks in advance,
Vitaly

As others have mentioned probably what you want can be done via Transport Rules.
However if you have some form of content that can't be caught with Rules and you want to use a Transport Agent then.
>> It is important for me to inspect and block internal emails too(not only emails going out of organization). I need to support Exchange 2010, 2013.
Then using a routing agent
http://msdn.microsoft.com/en-us/library/office/aa563310(v=exchg.150).aspx (the OnSubmittedMessage is probably the most appropriate) and
http://msdn.microsoft.com/en-us/library/office/aa579261(v=exchg.150).aspx#Namespaces is the way to go as this will catch both Internal and External email. If you want to write one agent that will work on both 2010 and 2013 then you want compile with the
2010 binaries and then use the
http://technet.microsoft.com/en-us/library/jj591524(v=exchg.150).aspx on 2013 (or just compile a different version for 2010 and 2013).
Cheers
Glen

Airport blocking outgoing emails?

Hi, I have a new airport extreme and it seems that it is causing problems with outgoing email, I can recieve emails but can't send, when I try it says my smtp settings are wrong. My smtp settings are definitley right, is there a firewall interfering?. Any ideas how to fix this?
Thanks
Howie

Did you change any of the ports on the AirPort Extreme, particularly port 25? Can you open up a terminal window and telnet to port 25 on your smtp server? If you don't know how to telnet to port 25 on your server, then let's suppose your smtp server's name is smtp.some.com, so you would type
telnet smtp.some.com 25
If that works when your Mac is directly connected to your network (no wi-fi), but fails when it is using wi-fi, there is indeed a problem. If it fails when directly connected, call your ISP to ask for assistance.

Outgoing messages blocked by some recipients due to Spamhaus PBL

I've read some related issues about this on the forums, but I haven't found any helpful solutions.
I am a FiOS customer, but I already have email service set up with other providers, and have no interest in changing my e-mail address(s). In general this works fine.
Recently however I have found that some receipients, who use spamhaus, are blocking my messages - apparantly because Verizon said that the only way their clients are allowed to send e-mail is through their servers. The bounce looked something like this (personally identifying information, etc. edited):
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its recipients. The following addresses failed:
<<edited>>
SMTP error from remote server after transfer of mail text:
host barracuda.acrocorp.com[edited]:
554 Service unavailable; Client host [mout.perfora.net] blocked by zen.spamhaus.org; http://www.spamhaus.org/query/bl?ip=71.164.000.000 (edited)
--- The header of the original message is following. ---
Received: from xxxxxx (pool-71-164-xxx-xxx.sttlwa.fios.verizon.net [edited])
by mrelay.perfora.net (node=mrus1) with ESMTP (Nemesis)
id 0MCKl7-1NM9wO0jcv-0097h4; Tue, 24 Nov 2009 16:40:26 -0500
Return-Path: xxxxxxx
From: xxxx
Sender: xxxxxx
To: xxxxxx
Date: Tue, 24 Nov 2009 13:40:24 -0800
Message-ID: <!&!AAAAAAAAAAAYAAAAAAAAAJ9z9bwRctQRnWQA4Jh+J3DCgAAAEAAAANjFkzKkqiFOp/[email protected]>
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_000_0C0C_01CA6D0B.AE1E9C70"
X-Mailer: Microsoft Office Outlook 12.0
Content-Language: en-us
Thread-Index: AcppU1OkA2KRPgLKRqWWeNYMDLOrpwD+U21Q
X-Provags-ID: V01U2FsdGVkX1/SPBJQinHX94j0qtDaHOJUZB38JI5NNAAl4Ic
ktk2YLeUKebUC6fKBM+YvSW1b2YSERJwkbKiD+2F1Nc5UyRs6v
WMF/kvX2k5L3lbGwKP4miYzEaDQ9gYz
When reading the information at Spamhaus, I said OK, sounds like I need to use a verizon.net server. So I set my outgoing server to outgoing.verizon.net, with appropriate credentials (I do have a verizon.net e-mail address, I just don't use it). This seemed to work, but today when sending to the same recipient, I got the following bounce:
This report relates to a message you sent with the following header fields:
Message-id:
<!&!AAAAAAAAAAAYAAAAAAAAAJ9z9bwRctQRnWQA4Jh+J3DCgAAAEAAAABuM/[email protected]>
Date: Mon, 30 Nov 2009 20:14:49 -0800
From: xxxxx
To: xxxxxx
Subject: xxxxx
Your message cannot be delivered to the following recipients:
Recipient address: [email protected] Reason: SMTP transmission failure has occurred
Diagnostic code: smtp;554 Service unavailable; Client host [vms173017pub.verizon.net] blocked by zen.spamhaus.org; http://www.spamhaus.org/query/bl?ip=71.164.0.0
Remote system: dns;barracuda.acrocorp.com (TCP|206.46.173.17|42774|12.111.233.9|25) (barracuda.acrocorp.com ESMTP [26a1cc209bbca0bd7cbebfeeb226aade])
Now first of all, I find it unacceptable that I need to use Verizon's outgoing mail servers rather than the provider of my choice. This means that if I have someone over who wants to connect their laptop to our network to send e-mail, they have to reconfigure their e-mail, and I have to give them my credentials, or else create an account for them on verizon.net. That's just bizzare!
But now it seems that Verizon is also not even keeping its own data straight with spamhaus!
Can anyone shed any light on this? Is there anything I can do to resolve these problems?
Thank you all!

You don't need to change your INCOMING email address however you do need to change your outgoing email server address to be the Verizon server. If you don't do this your email may be refused and treated as spam because it will appear that you are using "relaying" to send mail from fake accounts.
You now appear to have hit the other problem that sometimes occurs. It seems that at some point in the past the dhcp address you recived from verizon was blacklisted for something and spamhaus is now rejecting the email. The simple answer to this is to reboot your verizon router to get a new address. You could then report the blacklisted address to Verizon who might fight the adress issue with spamhaus or you could di it yourself. Think I had this occur 3 times in the 5 years I had Verizon dsl on a pppoe connection which delivers dhcp address changes many more times than FiOS does.

The email message cannot be sent. Make sure the outgoing email settings for the server are configured properly

i have an issue when loading a workflow. it gives me a following error "The email message cannot be sent. Make sure the outgoing email settings for the server are configured properly". it doesnt send me any alerts and worlflow fails at the end
with the above error message.

Hi,
I agree with Bistesh. But after Outgoing e-mail settings are configured properly, if the issue still exists,
It may result from your Anti-Virus. Please refer to the following steps:
Open MCAfee Console and go to Access Protection window.
Click Anti-Virus Standard Protection and edit “prevent mass mailing
worms from sending emails” rule.
Now we need to know which processes are being blocked therefore we need to check the MCAfee Log located at
C:\Documents and Settings\All Users\Application Data\McAfee\DesktopProtection\AccessProtectionLog.txt
you may find entries of DtExec , DtExecUI and DatabaseMail90, now these processes need to be entered in the exclusion list of selected rule .
Reset the IIS And SharePoint Timer service to check if this works for you.
Here are some similar issues with you, you can use as a reference:
http://social.technet.microsoft.com/Forums/en-US/667f0d61-4914-43fa-80c1-8cf430b113bb/workflow-email-not-working-but-normal-email-alerts-working-fine?forum=sharepointgeneralprevious
http://techsuite.wordpress.com/2008/12/08/workflow-history-the-email-message-cannot-be-sent-make-sure-the-outgoing-email-settings-for-the-server-are-configured-properly/
Best Regards,
Lisa chen

Windows Live Mail 2012 - Outgoing Email Times Out due to Lost Server Connection

Using Windows Live Mail 2012 on WIN7 64-bit.
Been receiving emails seemingly without issues, but...
Haven't been able to POST any outgoing emails now since September 16th for any of my main/sub accounts.
Indicator is a Norton Internet Security popup stating:
"Email Error. Your email message was unable to be sent because the connection to your email server was interrupted. Please open your email client and resend the message from the Sent Messages folder." Then it lists the from/to/subj.
I recompose and try to resend; same results.
I've rolled WIN7 back to September 6th, but results are the same.
I thought perhaps NIS was blocking the SMTP port, but same results when I turn off NIS and Antivirus. I don't see anything of significance in NIS's logs.
Of course, Verizon's mini-app that sniffs out and corrects email problems does not know or care about Live Mail. Just Outlook and OE.
Ideas? Things to try? Thanks.
...Karl
Solved!
Go to Solution.

GeezingInVA2 wrote:
I noticed my email account server settings don't match what is defined on the FiOS email setup page on verizon.com.
The server setting I have for my POP3 is "incoming.verizon.net" (not pop.verizon.net) and my SMTP server setting is "outgoing.verizon.net" (not smtp.verizon.net).
Why don't these match?
Also, my port settings don't seem to match what's posted online.
My outbound port is 25 (not 465) and my inbound port is 110 (not 995).
Doesn't seem right to me, and I'm wondering what changed in the past week?
The changes to pop/smtp from incoming/outgoing have been in the works for a while. Maybe Verizon finally go around to disabling the old servers?
Either way, you should update to the latest settings.
For the sake of example, we are going to pretend that we are setting up fictional account "[email protected]" and the password for logging into that account in webmail is "fakepassword" - Again, this is a fictitious account for the sake of an example.
The settings for using Verizon's servers would be:
Incoming Server: pop.verizon.net
Server Requires Authentication: Yes
Username: fakeacct
Password: fakepassword
Requires a Secure Connection (SSL): Yes
Port: 995
Outgoing Server: smtp.verizon.net
Server Requires Authentication: Yes (You can set it to use the same settings as incoming, or manually enter the username and password.)
Requires a Secure Connection (SSL): Yes
Port: 465
If you are given the option anywhere for Secure Password Authentication (SPA), set it to No or Normal
If a forum member gives an answer you like, give them the Kudos they deserve. If a member gives you the answer to your question, mark the answer as Accepted Solution so others can see the solution to the problem.
"All knowledge is worth having."

All Outgoing Emails Marked as SPAM

As of today, the primary PC we have used for years for our main .net account has all outgoing email marked as spam and blocked. Even single addressee, no content emails are bounced back as SPAM. I can still receive on the primary PC, and still send from other devices with the same account. I have deleted and re-added the account on the PC to make sure the server and port settings are current to no avail. Any thoughts on what might have happened?

As stated in the Spam FAQ page, you will not get any response when sending the message to [email protected] for review. You attach the message that you are unable to send, and they review it. Depending on the outcome of the investigation, the filter will either be updated to allow the content that was previously blocked, or it will be determined to be a legitimate block and no changes will be made.
Some troubleshooting steps you can try:
If you have a signature, try removing one line at a time from it and attempting to send the message again. Some signatures look like "ads" to the filters, apparently.
If you are using a pop3 client (Outlook, Outlook Express, etc.) try sending your message from the verizon.net website. If this resolves the issue, then it is something that your client is adding to the message that is causing it to be blocked.
If the Subject line of your message has a whole bunch of "Fwd: Fwd: Re: Fwd:" try removing some of them.
Remove any links/URLs from the email one at a time to isolate if one of them is causing the block.
Some people have suggested sending the message to [email protected] for investigation. This may work for you as well.
If a forum member gives an answer you like, give them the Kudos they deserve. If a member gives you the answer to your question, mark the answer as Accepted Solution so others can see the solution to the problem.
"All knowledge is worth having."

E7 outgoing email will not work

Hi All,
I have been using my company email on my E7 quite happily until Vodafone (who my account is with) switched off their mail server. Since then I can receive emails but just can't send any.
I was told to use the smtp settings for hotmail for my out going emails which didn't work. Since then I have tried using windows live, blueyonder, virgin, orange, yahoo, ovi and none of them will work. My email's just sit in the out box until I delete them.
Does anyone know of any outgoing email settings I can use to get my email working again?
Thanks a lot

You'll need to use whatever SMTP server the email provider specifies. Some of the companies you list have special "rules". I believe Hotmail uses a proprietary, web-based interface for sending and retrieving mail, and Yahoo provides POP3 and SMTP access only to paying customers. So you might save these providers for last. A few suggestions:
1) Don't trust the Nokia Email wizard. Outgoing email for my provider (Earthlink) doesn't work by default because the wizard supplies the wrong SMTP server. Visit the provider's web site and verify the server name yourself.
2) Also verify that authentication (username and password) is enabled for SMTP. Check the details with the provider.
3) If all else fails, discuss the problem with the provider's tech support team. If you still can't make it work, go back to Vodaphone. There's a slight chance they could be blocking SMTP access from your phone.
4) If you're using Nokia Messaging, their real-time email "push" service, that could complicate things...but I doubt it. My T-Mobile E73 has never supported Messaging, so it's an unknown.
I hope that helps!

Outgoing email blocked.

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