No plain authentication for Exim since last update

R

rvd

New member
Joined
Apr 28, 2025
Messages
2
Since the last update, plain authentication in Exim stopped working. Is this on purpose, or is something wrong?

telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 myhost ESMTP Exim 4.98.2 Mon, 28 Apr 2025 11:47:19 +0200
EHLO localhost
250-myhost Hello localhost [127.0.0.1]
250-SIZE 52428800
250-LIMITS MAILMAX=100 RCPTMAX=150
250-8BITMIME
250-PIPELINING
250-PIPECONNECT
250-STARTTLS
250 HELP
 
Read here to change that if you want because also smtp via port 25 is blocked now by default.
fln

Post in thread 'DirectAdmin 1.676'

@vinao if this happened after you have updated the Exim configuration using CustomBuild (da build exim_conf or via GUI), then this could mean one of the two things (or both of them):
  • Your clients using Thunderbird or Outlook were passing passwords over plain-text connection (not using encryption).
  • Your clients using Thunderbird or Outlook were using SMTP port 25 to send emails.
To fix the issue clients should update the email sending configuration by making sure they use encrypted connection when sending emails (use TCP port 587 or 465).

If there is a large...
  • Like

and here for all options:

Version 1.676 | Directadmin Docs

DirectAdmin Knowledge Base
docs.directadmin.com
 
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