smtp example with openssl s_lient

Hello,

I'm trying to run the SSL connection used by mutt to my ISP for SMPTP
with:

$ openssl s_client -connect smtp.1blu.de:465
...
220 ms-10.1blu.de ESMTP Exim 4.95 Ubuntu Wed, 17 Dec 2025 17:38:48 +0100
EHLO c720-1400094
250-ms-10.1blu.de Hello c720-1400094 [152.206.209.223]
250-SIZE 157286400
250-8BITMIME
250-DSN
250-PIPELINING
250-PIPE_CONNECT
250-AUTH LOGIN PLAIN
250-CHUNKING
250-SMTPUTF8
250 HELP
AUTH LOGIN
334 VXNlcm5hbWU6
XXXXXXXXXXXXXXXXXXXX
334 UGFzc3dvcmQ6
XXXXXXXXXXXXXXXXXXXX
RENEGOTIATING
281473263360496:error:140940F5:SSL routines:ssl3_read_bytes:unexpected record:../ssl/record/rec_layer_s3.c:1774:

The 'XXXXXXXXXXXXXXXXXXXX' values are calculated by

$ echo -ne 'username' | base64
$ echo -ne 'password' | base64

and they match exactly what I can see in the mutt's debug file
~/.muttdebug0

But, mutt gets an answer as

235 Authentication succeeded

while I get

RENEGOTIATING

What do I wrong here? Thanks

	matthias


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Matthias Apitz, ✉ [email protected], http://www.unixarea.de/ +49-176-38902045
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