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Questions tagged [email-bounces]

email bounces are messages that are delivered to the nominated postmaster account on an email server to indicate a problem delivering the mail to one or more recipients.

email bounces are messages that are delivered to the nominated postmaster account on an email server to indicate a problem delivering the mail to one or more recipients.

Bounces can result from unknown users, failed mail servers, or other network or configuration issues.

402 questions
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Same domain emails are bouncing back others are working fine

I have moved recently my website to a VPS everything working well except for the email. Emails are delivering well on any domain other than the domain where website is hosted. E.g. emails are sent to @gmail.com @yahoo.com or @anyotherdomain.com.…
Atif
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Configure server to ignore NDRs to forged addresses/domains

AT&T's Blacklist site suggests one option of correcting mail server issues is: Reconfigured server to ignore NDRs to forged addresses/domains However, NDRs are returned to the sender by their own server's mail daemon. So, it seems that one's mail…
Michael Yaeger
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E-mail: de-facto behavior of bounces and other system messages

I'm trying to understand the reality of system e-mail messages. I am currently running an outgoing MTA (Postfix) instance, and there is a couple of details I cannot manage to put my finger on. First of all; I was expecting system messages to come in…
Tim Molendijk
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How to set postfix to just ignore mail to nonexistent users

I'm getting a huge amount of spamming attempts to random usernames. I know that it happens to all mail servers to some degree, but during the last two weeks there was so much that my VPS's disk allotment filled up just because of the size of the…
OsakaWebbie
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email backscatter returns not seen on mail server

We have a user email that we think is under an backscatter attack. We can find no evidence of the account being compromised. The user also states they have not sent out any of the emails they are getting back. In our system, when an email gets…
user53029
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Google mail servers returing Deffered: 450-4.2.1. for no apparent reason

We have a problem with our sendmail: gmail is always returning the "Deffered: 450-4.2.1." error. I checked all available documents and help articles, but it only confuses me. I am testing this on my own email, and surely I do not receive more then…
Sabo
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setup posfix mail server - allow local emails (error 550 5.7.1)

I have from on website and submiting it should sens question email to support on behalf of customer (puting his email addres as sender) Problem is that support does not recieve email but insead customer gets bounce with this error 550 5.7.1…
Lukáš Rutar
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554 5.7.1 unknown recipitent

I'm trying to send an email to M@Danielmadison.co.uk (there are no attachments being sent if that would affect anything) and i keep getting the following message: Delivery to the following recipient failed permanently: …
Qreq
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Exchange 2010 email via OWA still gives ExRecipNotFound

I had an email account: info@product.com. In exchange I had a distribution group product@mycompany.com. This distribution group had a few users. My DNS MX records pointed to my exchange 2010 server. So sending an email to info@product.com was going…
juFo
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How do I configure the listener binding address for python 2.7 smtplib running in a windows environment?

I am setting up an application called openemm which uses the python 2.7 smtplib to handle smtp transactions. My outgoing mail works fine but smtplib is not responding to incoming requests on port 25 (which are used to handle delayed bounces and I…
Jason Peterman
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Email bounce notification for an email account that doesn’t exist in exim mail server

Need help with Exim mail server setting. I want to set the exim mail server to trigger an email bounce notification for an email account that doesn’t exist. For example: abc@abc.com - should bounce immediately. When I try the same using my outlook…
Vikram Pote
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Postfix sent mails are bounced or go to spam

I recently tried setting up a mail server to be able to send mail for the websites I host with apache. At first I tried to work with exim but I was overflown with error messages and mails I tried to send were rejected for most destination. I think…
ibi0tux
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How to troubleshoot emails from some hosts not being received without error messages

I am trying to troubleshoot the server I mantain. It is a Centos 6.6 with Plesk 12.0.18, it uses Qmail and Courier as email services from what I can see. Now in general all emails work succesfully and sometimes someone is unable to send emails but…
T. Nacel
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Exchange 2013 Account experiencing weird longterm bouncing issue

We recently migrated one of our clients to Exchange 2013 from Google Apps, since the migration a single user has been experiencing inexplicable bounces emails and calendar updates. Some of the bounces are generated by emails to other users inside…
toomanyairmiles
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Exchange server: Why do a couple users have random numbers at the end of their "Windows domain\user name" and is this causing problems?

Background on the problem: I work for a company which is a Panasonic Partner. As a part of this program, Panasonic regularly sends out "Partner Alerts" to everyone who is signed up to receive them. We have two users on our exchange server who are…
Ben
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