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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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POSTFIX - sending mails. My mails sent outside bounce back

main.cf compatibility_level = 2 command_directory = /usr/sbin daemon_directory = /usr/lib/postfix/sbin data_directory = /var/lib/postfix mail_owner = postfix myhostname = mail.aufy.pl mydomain = aufy.pl myorigin = $mydomain inet_interfaces =…
aufy
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postfix time to time issue delivery temporarily suspended connection timed out

I have a Postfix installed on an Oracle Linux server. This Postfix is configured to receive emails from another Postfix server, which are sent externally through the Fortinet Cloud Email Security Gateway. From time to time, mail delivery fails and…
Diads
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Postfix - How to send bounces only to postmaster?

I have an internal Postfix server where bounces are intentionally discarded (not recommended in general but needed for my use case). I would like to enable it temporarily but only to the postmaster, not the sender. Is that possible? Currently when…
yair
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What exactly is Return-Path and who sets it?

This article (https://www.sparkpost.com/resources/email-explained/return-path-explained/) explains "Return-Path" as follows: When an email doesn’t make it to its intended destination, the return path indicates where non-delivery receipts—or bounce…
Myzel394
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postfix configuration to prevent bounces when relaying to 3rd party (e.g. src -> my@work -> my@gmail)

i have an active mail relay that is using aliases as a main tool, at some point we started to get bounces for some emails. Source: somerandomsenderdomain.com Destination: myemaildomain.com mailinglist1: myuser@gmail.com,…
DrunkMice
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Get email notification when an email is marked as spam

I use AWS SES to send emails to users who registered on my website. When I receive an email from AWS about a bounce or a complaint, I remove that user from the database. I'm OK doing this manually (no need for an SNS pipeline of JSON data). In the…
miguelmorin
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resolve 5.1.0 Address rejected. Status: 5.3.0 issues

I send bulk mail to people that have joined our organization. The mail has unsubscribe links and if anyone click the 'mark as SPAM' button I don't send mail to that address again. I use DKIM/SPF and monitor my DMARC receipts (p=quarantine [pct=1]).…
Johnny Ruin
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Send bulk emails with valid DMARC security

We are implementing a feedback feature in our web application. After completion of an event, we are sending emails requesting feedback and ratings to our visitors. If we do write the following DMARC entry, it is not working. If we make DMARC…
Akash Samal
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SendMail Bounce Back Missing Send To Address in Transcript

SendMail bounce back response is showing a blank To address. How can I correct this so the bounce back includes the To address? This began occurring after installing opendkim on the server and before DKIM was enabled. Sendmail version did not…
Dorothy
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Why is email sent from my AWS SES server cannot arrive on corporate-domain email, but arrive on mail service such as Gmail?

The summary: email from SES did not arrive at user's corp domain email. email from SES arrives at my corp domain email but is hosted at Gmail. email from my private Gmail arrives at user's corp domain email. email received by receiving MTA with…
Chen Li Yong
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Postfix: how to accept then bounce emails for some domains (example: gmail.fr)

All this is specific to domains with no incoming emails at all and with no available MX. A domain may not have any MX record, that's RFC-compliant, but may have a A record that doesn't point to any email server. In this situation, postfix tries to…
Artur
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How can I understand if my MX is changing the message envelope?

I have an exim4 server that forwards all input emails to a gmail account. Gmail is refusing some valid messages with this error: SMTP error from remote mail server after end of data: 550-5.7.1 Our system has detected that this message is likely…
Tobia
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Privacy-friendly Postfix bounce messages for remote rejects

The topic of handling bounce message for remote rejects has been brought up at least three times (1, 2, 3), and it looks as if there is no real solution. I wonder, though, if the bounce template can be modified to not include the reject message from…
janeden
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Emails from one domain A bounce on b@example.com but send fine to c@example.com

When any account @domainA.com sends to a specific address (eg. b@domainB.com) it bounces. When they send to another address at the same account (eg. c@domainB.com) it goes through just fine. c@domainB.com has existed for a number of years now,…
Jonathan Hack
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How to avoid emails sent to Google's deep web crawler

My website has an area restricted to users who sign up with a valid email. I have got requests with bogus emails, and I want to avoid sending emails to non-existent addresses lest they increase the bounce rate and hurt my sending reputation. The…
miguelmorin
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