5 messages in net.sourceforge.lists.courier-users[courier-users] Strange esmtp error
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gillianbJun 21, 2006 9:54 pm 
Gordon MessmerJun 21, 2006 11:36 pm 
Sam VarshavchikJun 22, 2006 2:49 am 
Gordon MessmerJun 22, 2006 7:20 am 
Joseph W. BreuJun 22, 2006 9:23 am 
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Subject:[courier-users] Strange esmtp errorActions...
From:gillianb (gill@celentia.com)
Date:Jun 21, 2006 9:54:25 pm
List:net.sourceforge.lists.courier-users

Hi,

Firstly, I appologise if this has been asked before. google doesn't bring much info, and I am currently unable to search the archives.

I have been using courier for quite a while, and emails to several addresses have just started generating this error as a bounce:

UNDELIVERABLE MAIL

Your message to the following recipients cannot be delivered:

<cont@jdsecurity.com.au>: mail.jdsecurity.com.au [202.154.115.248]:

STARTTLS

<<< 500 5.3.3 Unrecognized command

Nothing has changed at our courier end, but there is an error in the log file for the same IP address which says :

Jun 22 11:15:01 ver-arc-ms1 courieresmtpd: error,relay=::ffff:202.154.98.58,msg="502 ESMTP command error",cmd: XXXX redhotpie.com.au Jun 22 11:15:11 ver-arc-ms1 courierd: newmsg,id=0002EFE5.4499EF1D.000032BE: dns; redhotpie.com.au (softdnserr [::ffff:202.154.98.58])

As nothing has changed at our end, what could the receiver end be trying to do that courier doesn't like?

thanks, gb