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After a server restore POSTFIX no longer works
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Topic: After a server restore POSTFIX no longer works (Read 4410 times)
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drivel2787
Newbie
Posts: 22
After a server restore POSTFIX no longer works
«
on:
October 06, 2021, 12:57:15 PM »
Hello,
I paid for CWP support to fix my postfix and mail server so that I wasn't getting invalid certificates. They advised all they did was add my server to the /etc/hosts in an entry and rebuild my email server. After restoring a snapshot due to other reasons (where I didn't mess with postfix at all) I am no longer able to connect to mail servers and send email. I also had tried what they said they did probably 20 times no joke and this didn't fix the issue which is why I paid for support! Has anyone ran into this or no SASL authentication mechanisms? What did you do to fix it? Any tips? Appreciate anyone's help!
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studio4host
NOC Partner
Hero Member
Posts: 1331
Re: After a server restore POSTFIX no longer works
«
Reply #1 on:
October 06, 2021, 06:43:57 PM »
if you have lost certificates you will probably need to rebuild all certs from the ssl manager...but you should first check postifx/dovecot conf and what is exactly happening there
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drivel2787
Newbie
Posts: 22
Re: After a server restore POSTFIX no longer works
«
Reply #2 on:
October 07, 2021, 03:34:47 AM »
I have renewed certs, I have rebuild the servers after adding DKIM and SPF. I modified config where needed. Now I can't connect on ports 993/995 and 465. My mail server doesn't detect automatically when using thunderbird or outlook. I also get the following in my log:
Oct 6 23:26:41 host1 postfix/smtpd[263521]: fatal: no SASL authentication mechanisms
Oct 6 23:29:59 host1 postfix/master[1904]: warning: process /usr/libexec/postfix/smtpd pid 341714 exit status 1
Oct 6 23:29:59 host1 postfix/master[1904]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling
Oct 6 23:31:35 host1 postfix/smtpd[341819]: connect from mail-oi1-f196.google.com[209.85.167.196]
This thing has NOT worked once since I setup CWP multiple times. I even built it from scratch and it wouldn't work until I paid support and they supposedly did exactly what I did and it "MAGICALLY" worked. LOL.
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levat
Newbie
Posts: 1
Re: After a server restore POSTFIX no longer works
«
Reply #3 on:
April 01, 2024, 11:27:19 AM »
Had the same issue yesterday after a migration and a restore to centos 8.
I didnt have dovecot-mysql package somehow installed
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overseer
Hero Member
Posts: 1044
Re: After a server restore POSTFIX no longer works
«
Reply #4 on:
April 01, 2024, 01:56:58 PM »
It's worth mentioning again: if you are creating a fresh server today, don't use a beta OS like CentOS 8 Stream (even with delayed repos). Instead, start with AlmaLinux 8 (a true enterprise Linux, fit for server duty).
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