Sam and others, Below is a further sampling from my logs or a recurring ESMTP 502 error. Of note is the same attempted command XXXX. The listed servers are typically running various versions of sendmail (typically 8.12.1) or MS. Is this commonly seen by anyone else? I am convinced this is a problems with these remote servers. But the idea of putting the onus on them to fix things is unpalatable to my employeer. Can anyone else verify seeing this in there logs, or offer suggestions on how to build my case?
Jan 27 04:03:23 reckoning courieresmtpd: error,relay=::ffff:24.29.99.226,msg="502 ESMTP command error",cmd: XXXX nycsmtp1out.rdc-nyc.rr.com Jan 27 04:09:06 reckoning courieresmtpd: error,relay=::ffff:128.100.10.141,ident="root",msg="502 ESMTP command error",cmd: XXXX picton.eecg.toronto.edu Jan 27 04:19:49 reckoning courieresmtpd: error,relay=::ffff:38.151.68.98,msg="502 ESMTP command error",cmd: XXXX ny001.mgusa.com Jan 27 04:20:38 reckoning courieresmtpd: error,relay=::ffff:128.121.122.47,msg="502 ESMTP command error",cmd: XXXX s0244.pm0.net Jan 27 04:23:06 reckoning courieresmtpd: error,relay=::ffff:143.166.224.253,msg="502 ESMTP command error",cmd: XXXX smtp3.us.dell.com Todd D. VanderVeen writes: >> Jan 27 08:06:26 reckoning courieresmtpd: started,ip=[::ffff:129.46.64.204] >> >> Jan 27 08:06:26 reckoning courieresmtpd: >> error,relay=::ffff:129.46.64.204,msg="5 >> 02 ESMTP command error",cmd: XXXX warlock.qualcomm.com >> >> Jan 27 08:06:34 reckoning courieresmtpd: >> error,relay=::ffff:129.46.64.204,msg="5 >> 02 ESMTP command error",cmd: XXXXXXXX >> >> My understanding is as follows. On connecting, a server may attempt >> various extended smtp commands. A 502 error indicates that while the >> server understands esmtp, the particular command is unimplemented. The >Not exactly. ESMTP command capabilities are determined from the EHLO >response. > >The 502 error indicates that the command received from the client is not a >valid ESMTP command. Certainly there is no such command called 'XXXXXXXX' >or 'XXXX' in either the base SMTP protocol, nor any common extension. > >-- Sam Regards, Todd VanderVeen PartNET Systems Manager 801-891-0741 _______________________________________________ courier-users mailing list [EMAIL PROTECTED] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
