Can you show mne the output of tcpflow port 25?
tcpflow -c port 25
tcpflow[28297]: listening on eth0
137.143.110.104.00025-137.143.110.044.47932: 220 smtp.potsdam.edu ESMTP
137.143.110.044.47932-137.143.110.104.00025: EHLO sogo.potsdam.edu
137.143.110.044.47932-137.143.110.104.00025:
137.143.110.104.00025-137.143.110.044.47932: 250-smtp.potsdam.edu
250-SIZE 10000000
250-PIPELINING
250 8BITMIME
137.143.110.044.47932-137.143.110.104.00025: QUIT
137.143.110.104.00025-137.143.110.044.47932: 221 smtp.potsdam.edu
Then. that is normal. SMTP AUTH must be advertised by your smtp server
for SOGo/SOPE to make use of it...
You should see a line saying "S: plain auth extension supported" when
it's the case.
Wolfgang
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