On Fri, Feb 27, 2026 at 02:31:49AM +0000, Graeme Slogrove via mailop wrote:
> We recently saw a similar issue with an Exchange server - the
> certificate itself was incorrectly set up and resulted in a similar
> log error:
The below is not "similar". There's no timeout waiting for the client's
EHLO.
> 05460 09:51:58.627 RX: <250-SIZE 37748736>
> 05460 09:51:58.627 RX: <250-PIPELINING>
> 05460 09:51:58.627 RX: <250-DSN>
> 05460 09:51:58.627 RX: <250-ENHANCEDSTATUSCODES>
> 05460 09:51:58.627 RX: <250-STARTTLS>
> 05460 09:51:58.627 RX: <250-X-ANONYMOUSTLS>
> 05460 09:51:58.627 RX: <250-AUTH NTLM>
> 05460 09:51:58.627 RX: <250-X-EXPS GSSAPI NTLM>
> 05460 09:51:58.627 RX: <250-8BITMIME>
> 05460 09:51:58.628 RX: <250-BINARYMIME>
> 05460 09:51:58.628 RX: <250-CHUNKING>
> 05460 09:51:58.628 RX: <250-SMTPUTF8>
> 05460 09:51:58.628 RX: <250 XRDST>
> 05460 09:51:58.628 TX: <STARTTLS>
> 05460 09:51:58.810 RX: <220 2.0.0 SMTP server ready>
> 05460 09:51:58.999 SSL connection error. - SSL_ERROR_SSL
> 05460 09:51:58.999 error:0A000126:SSL routines::unexpected eof while
> reading:ssl\record\rec_layer_s3.c:703
>
> Once configured correctly, the connections succeeded.
That's not the problem here. The SSL handshake completes.
The details matter, and unrelated speculation is sadly not helpful, just
distracting.
--
Viktor. 🇺🇦 Слава Україні!
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