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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.

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What to do if one doesn't want to receive email bounces?

Background—the standards RFC 5321 §4.5.5 states: All other types of messages (i.e., any message which is not required by a Standards-Track RFC to have a null reverse-path) SHOULD be sent with a valid, non-null reverse-path. For the avoidance of…
eggyal
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unusual rate of unsolicited mail originating from your IP address

On my server I redirect mail, arriving to in@example.com, to manager1@gmail.com and manager2@gmail.com with /etc/aliases file. Recently I got the following email in my my.email@gmail.com mailbox (where postmaster@example.com mail is redirected…
x-yuri
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Is null return path reliable indication of a bounce?

I have a mailbox that receives bounces as well as normal email (the latter includes messages from automated services). I want to filter out the bounces and forward them to another mailbox. Assume I cannot change the envelope return path in email I…
Vasiliy Faronov
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Domain of sender address does not resolve (in reply to MAIL FROM command)

When sending out emails with postfix I sometimes get this error: 451 #4.1.8 Domain of sender address does not resolve (in reply to MAIL FROM command) The domain mydomain.tld is resolvable though, meaning A, MX, PTR records are…
horen
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Setting bounce address using postfix

I want to set the bounce address or return path address to a particular email address(say someemail@example.com). Such that whenever a mail bounces it will send a reply to someemail@example.com. How can I do that using postfix ?
Souman Mandal
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Anyone have a Powershell script to look up the MX record for a domain?

I want to check to see if the email addresses in my contact management system are valid and the best way I can think to do this is to get the MX record for their domain, then open an SMTP connection and see if the remote server accepts the email…
Kevin Buchan
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Email Spoofing Or Something More Sinister?

I'm a software developer and my wife works at a small business. I'm not a security expert, but the story their IT contractor is giving her doesn't add up to me. Lately some people who send email to "Jane," the person in charge of finances at her…
Pharylon
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Postfix 451 4.3.5 Server configuration error

So I'm running mail on my VPS, using Postfix + Dovecot. I am able to send, but not all mail comes in. Note: DOMAIN = my domain, but I blocked it for security reasons. The case: I want to use my mail on Twitter, but the verification email never…
dnwjn
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Where is the email bounce sent? To the @domain or to the IP that sent it?

When I send an email from noreply@mysite.com to user@yahoo.com and I use that VERP bounce format like bounce+user=yahoo.com@mysite.com Is this bounce back sent to the mail server in DNS records of the sending domain or is it sent back to the IP…
adrianTNT
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Silently drop OUTGOING mails to us.er.n.a.me@gmail.com (more than 3 dots in username part)

With postfix-2.6.6-2.2.el6_1.x86_64 on CentOS 6.4 is there please a way to inspect OUTGOING mails and silently drop them (i.e. do not send them) if the recipient looks like us.er.n.a.me@gmail.com (i.e. gmail.com domain and more than 3 dots in the…
Alexander Farber
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451 Temporary local issue with sending out emails

2012-06-14 21:57:14 cwd=/etc/csf 4 args: /usr/sbin/sendmail -f alerts@host2.thetimesoftimes.com -t 2012-06-14 21:57:14 1SfEIE-0000wK-Kj <= alerts@host2.thetimesoftimes.com U=root P=local S=678 T="lfd on host2.thetimesoftimes.com: WHM/cPanel root…
Tiffany Walker
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How to configure email server to send lots of transactional emails

My organization is currently outsourcing email delivery to an SMTP service provider. We're considering bringing that back in house to deliver our own emails. We send about 5k transaction emails per day in relation to order confirmations and…
anotherguy
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Hotmail and Live.com rejecting all emails

I have been having problems sending emails from my server to hotmail.com and live.com email addresses. I have read other posts on serverfault but they have not been helpful. Here is the error message. It is very vague 550 SC-001 Mail rejected by…
user16517
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Do out-of-office replies get sent to the return-path header?

I always thought that the return-path header was used for bounced messages, so I have my email newsletter software setup to unsubscribe anyone whose email address replies back to the return-path email address. But recently some users started telling…
Brian Armstrong
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Indirect Postfix bounces create new user directories

I'm running Postfix on my personal server in a data centre. I am not a professional mail hoster and not a Postfix expert, it is just used for a few domains served from that server. IIRC, I mostly followed this howto when setting up Postfix. Mails…
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