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From: Noel Jones (njonesmegan.vbhcs.org)
Date: Wed Aug 27 2008 - 14:30:25 CDT
Olivier MJ Crepin-Leblond wrote:
> Mouss said:
>> maybe your firewall is playing bad esmtp games.
>> you can test with telnet:
>> $ telnet psg.com 25
>> 220 psg.com ESMTP Exim 4.69 Wed, 27 Aug 2008 17:12:06 +0000
>> EHLO your.hostname.example
>> 250-psg.com Hello your.hostname.example [your.ip]
>> 250-SIZE 52428800
>> 250 HELP
>> 221 psg.com closing connection
> Coud it be the case:
> --- cut here ---
> [rootwaikiki ocl]# telnet psg.com 25
> Trying 18.104.22.168...
> Connected to psg.com (22.214.171.124).
> Escape character is '^]'.
> 220 psg.com ESMTP Exim 4.69 Wed, 27 Aug 2008 19:05:45 +0000
> EHLO salsa.gih.co.uk
> 500 unrecognized command
> HELO salsa.gih.co.uk
> 250 psg.com Hello salsa.gih.co.uk [126.96.36.199]
This is typical behavior of a firewall mucking with the SMTP
traffic. Since psg.com supports TLS from other locations, it
would seem your firewall is the problem.