New answers tagged email-server
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Can I Force Implicit TLS Connection For Port 587 On Postfix?
Certainly it is possible to put any service to listen on any port, such as SSH on port 443 (HTTPS) which is a common trick for bypassing port based firewalls. You could change this in master.cf for ...
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-1
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Can I Force Implicit TLS Connection For Port 587 On Postfix?
No you can't change what a port is designated for. In the case of postfix, other mailservers expect a certain "payload" when communicating over that port.
When you communicate implicit tls ...
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0
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Accepted
Wrap plain text mail in html
Rewriting/preprocessing emails send using sendmail programs
As I understand in your case you can use "sendmail preprocessor" program/script.
https://www.php.net/manual/en/mail.configuration....
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1
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Accepted
Postfix: How can I handle incoming mail for a single address, not the entire domain?
The answer, as Nikita suspected, was additional unexpected Postfix directives added as boilerplate by my company. One of its directives was masquerade_domains = example.com. This turned servicebot@...
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Postfix: How can I handle incoming mail for a single address, not the entire domain?
I have pretty much the same setup, I don't have much configured.
mydestination = localhost.example.com, localhost
relayhost = smtp.example.com
virtual_mailbox_domains = jira.example.com
...
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1
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Postfix: How can I handle incoming mail for a single address, not the entire domain?
Not tested, but but I would try to rewrite the recipient with
/etc/postfix/main.cf:
transport_maps = hash:/etc/postfix/transport
/etc/postfix/transport:
[email protected] ...
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Postfix - How to send bounces only to postmaster?
you have to set notify_classes = in main.cf. And set bounce_notice_recipient = postmaster .
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Receive notification whenever someone marks email as spam POSTFIX
The closest thing to what you are looking for is called Complaint Feedback Loop.
Many large providers, notably Microsoft and Yahoo, will let you register your IP address and/or domain to receive such ...
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Receive notification whenever someone marks email as spam POSTFIX
It's impossible. Postfix (or other MTA) does not take any part within this marking up process.
When the mail is delivered, it is put into MDA (message delivery agent), such as Cyrus or Dovecot. MUA (...
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Force Dovecot not to log connect/disconnect messages
"connect/disconnect" messages are info messages from dovecot, so you can configure dovecot not to log the info messages:
# /etc/dovecot/conf.d/10-logging.conf
info_log_path = /dev/null
# ...
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clamav-daemon start condition failed, /var/lib/clamav/daily.{c[vl]d,inc} was not met
Complementary to Omid's answer, you can manually download the .cvd files from the mirror below and place them in /var/lib/clamav.
https://database.clamav.net/main.cvd
https://database.clamav.net/...
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Which IP address in email headers should I ban to block spam from this source?
Finding the correct IP address
Every message transfer agent (MTA) processing the email adds headers at the top of the message, so they are in descending order; the topmost are the newest ones. To find ...
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Which IP address in email headers should I ban to block spam from this source?
Blacklisting a single Zoho server won't really do much. They've got a few more.
If you want to ban their servers in total, do it by host domain zcsend.net or by envelope FROM @(.*).psnd.zcsend.net>....
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