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:
<[EMAIL PROTECTED]>:
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
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