[horde] IMP 6.1.5 Can't send a message via smtp (issue with HEHLO error 502)

[Robert Schetterer]

Am 20.11.2013 07:49, schrieb Andreas Schulze:
> 
> Zitat von Michael M Slusarz <slusarz at horde.org>:
> 
>> SMTP servers have REQUIRED EHLO support since RFC 2821 -- issued April
>> 2001.
> 
> It's not a server failure. It's a cicso security device 'protecting' the
> server.
> 
> 'Protection' is done by masking the initial 220 line. Nearly anything is
> replaced by '*'
> An SMTP Client can't find the string 'ESMTP' and has to fall back to
> RFC821.
> For Cisco that is 'secure' ...
> 
> Andreas
> 

to be fair ,mostly its about helpless admins who cant configure pix
or didnt update, some problems are known for years

http://www.postfix.org/postconf.5.html#smtp_pix_workarounds

> 
> 


Best Regards
MfG Robert Schetterer

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