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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: Script to difference hard vs soft bounces

I followed the steps mentioned in the forum - how to collect bounces for triggering a script upon a bounce receipt. Now, I would like to classify the bounce depending on the status. It would be deferred/delivered/etc.. This would categorize them as…
Hariprasauth Ramamoorthy
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Zimbra server compromised - how to investigate

We have a zimbra email server and one of the email accounts was compromised. The problem we have now is that a lot of spams are sent from that server and we cannot identify which account is compromised. In the mailq we can only see the from email,…
Milos Cuculovic
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How do I find and prevent local mail handling?

I did an apt-get update of a server "myserver.com" recently and now all emails sent from that server to email@myserver.com bounce with "user unknown". I believe that the server is trying to deliver to local users, but I am not sure why it changed to…
Ben Holness
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Outgoing email errors

A couple of months ago some of our emails got hacked (they got hands on the passwords) and they sent out 1000+ spam emails from those specfic accounts to random adresses. Now months later after having the hack problem fixed, the email accounts still…
Filip Huysmans
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How to drop registration mail bounces to noreply@ mail address

On CentOS 7 Linux I run Drupal, which requires users to confirm their mail addresses. I have modified the postfix config files in the following way: /etc/postfix/generic: @www.localdomain noreply@preferans.de /etc/postfix/main.cf: smtp_generic_maps…
Alexander Farber
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Postfix before-queue spam reject with amavis without sending out a bounce on OS X Server

This is a stock OS X 5.2 Server mail configuration which I'm trying to change to make it reject a spam message with a "554 5.7.0 Reject" before accepting it without sending out any additional non-delivery notifications to the sender. It's configured…
Захар Joe
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How to get Google Apps groups to accept my emails?

I've been running a mailserver for myself and some others for quite some time now. Just recently (since moving to a new host) we've started seeing bounces when we send mail to email addresses that are "groups" on "Google Apps" -- we can email…
singpolyma
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Email address tagging doesn't work with virtual mailboxes in postfix

I have my own email server, and I'd like to be able to use dynamic email address tagging. I added the recipient_delimiter = +- directive to my config and restarted postfix, but now if I email bob+sometaghere@starbeamrainbowlabs.com for example, the…
starbeamrainbowlabs
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How to set up mx records

So I bought a new domain name from GoDaddy and pointed the domain to my VPS IP Address which works fine. [Please note, the VPS is not hosted with GoDaddy, just the domain name.] However, I noticed that all incoming mails from external servers…
AndrewL64
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550 Verification failed Sender verify failed (in reply to RCPT TO command)

Note: email addresses, domains, and ip addresses have been changed to protect the innocent Current Error: Apr 28 23:47:32 vps01 postfix/smtp[8012]: 2A03D6285EF9: to=, relay=mail.somedomain.com[162.144.93.233]:25, delay=42,…
amaster
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How to properly setup DNS for subdomain used only for sending

I am using mailgun to sent our emails. It works fine in most of cases but recently I get bounced with: 450 4.1.8 Sender address rejected: Domain not found My setup is: xyz.com has mx setup for gmail.com devmail.xyz.com is used in mailgun - only for…
Dusan Plavak
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Catch All Email for Old Domain?

We've been on our new domain for over a year now and we have removed our redirects from the individual accounts but my boss wants to have a catch all email account so just in case there are messages even if they end up as spam (we're limiting the…
jonathanwash
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Avoid Mail Delivery System Bounce Forward

I have the following mail setup: This is what happens at the numbered stages: some spam-address (which actually does not exist) sends spam to info@xyz.org the info@xyz.org has an auto-reply configured which is sent automatically to spam@spam.org…
beta
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Postfix - bounce messages are not sent to postmaster

I ban and reject some spammer domains/IPs, via: smtpd_recipient_restrictions = check_sender_access regexp:/etc/postfix/client_checks, ... client_checks file: /\@domain\./ REJECT and it works fine, but I want to receive notification on postmaster…
cmpt
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How to test an email address, MX records updated, it works, some users get returned mail

I had a small issue with an email address recently, after a few changes of MX records with the help from my hosting company these were resolved. I have tested the email address from multiple accounts, my server, gmail, aol, hotmail etc. I have…
Lawrence
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