That particular failure does not generate a log line.
BTW: There is a fail2ban-users mailling list. Bill On 5/30/2018 11:46 AM, Alberto José García Fumero wrote:
Hi all. I'm new to fail2ban, and I need advice. Here I have Postfix+SASL in Linux, users under /home. Quite vanilla. Postfix uses several reject_rbl_client rules. Here is a sample of the error messages I have. *********** De: Mail Delivery System <mailer-dae...@partagas.ettpartagas.co. cu> Para: Postmaster <postmas...@ettpartagas.co.cu> Asunto: Postfix SMTP server: errors from unknown[185.234.217.38] Fecha: Tue, 29 May 2018 14:13:00 -0400 (CDT) Transcript of session follows. Out: 220 partagas.ettpartagas.co.cu ESMTP Partagas In: EHLO 190.6.79.98 Out: 250-partagas.ettpartagas.co.cu Out: 250-PIPELINING Out: 250-SIZE 15240000 Out: 250-ETRN Out: 250-STARTTLS Out: 250-ENHANCEDSTATUSCODES Out: 250-8BITMIME Out: 250 DSN In: AUTH LOGIN Out: 503 5.5.1 Error: authentication not enabled Session aborted, reason: lost connection For other details, see the local mail logfile *********************** When I search for 503 5.5.1 in the log file /var/mail/mail.log, nothing is found. In fact, there is no such a string to be found in the logs under /var/log. Where else should I search? TIA, Fumero
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