On Mon, Mar 09, 2015 at 02:10:16PM -0400, James B. Byrne wrote:
> <[email protected]>: host mx01.1and1.com[74.208.5.21]
> refused to talk to me: 501 Syntax error in parameters or arguments
Perhaps they don't like your EHLO name.
$ posttls-finger -o myhostname=shorthelotest "[mx01.1and1.com]"
posttls-finger: Connected to mx01.1and1.com[74.208.5.21]:25
posttls-finger: < 220 perfora.net (mxeueus003) Nemesis ESMTP Service ready
posttls-finger: > EHLO shorthelotest
posttls-finger: < 501 Syntax error in parameters or arguments
posttls-finger: EHLO rejected: 501 Syntax error in parameters or arguments
> We are getting these rejects when attempting to send to addresses at
> this domain and only this domain (so far). Can someone provide some
> insight as to what might be happening here? How can it be fixed?
report the output of:
$ printf "---%s---\n" "$(postconf -h myhostname)"
$ printf "---%s---\n" "$(postconf -h smtp_helo_name)"
Make that "-hx" instead of "-h" if your Postfix is recent enough.
--
Viktor.
