Xmail does not do any 'callback' to verify sender email ...
(The only way to do this is from a filter. And in any cases currently xmail
first possible filter execution is AFTER 'RCPT TO' smtp command, not just
after HELO/EHLO command. The only internal filtering in xmail is on ip
address at connection from spammers.tab, ipprop.tab, ... files)

The Google/Gmail staff response seems to be unapproriate for the present
problem :(
 
Did you do some network analysis on both sides of your firewall to see if
gmail servers really try to connect to you and where in the process of the
connection it ends exactly ?

Francis

-----Message d'origine-----
De: [EMAIL PROTECTED]
A: [email protected]
Date: 17/07/07 09:16
Objet: [xmail] Re: problem with gmail

Hi,
we have got an answer from google support:
------------------------------------------------------------------------
---------------
Hello,

Thank you for your report. Please contact the recipient's webmail
provider
and ask them to whitelist Gmail from callback verification.

Callback verification is a technique used by SMTP software that attempts
to open a new connection to any server that it doesn't recognize with a
blank message. Because these attempts to verify sending addresses can
happen very frequently, traffic may appear as a Denail of Service
attack,
which will prompt Gmail servers to block these messages. Gmail does not
support sender verification, and suggests that other webmail providers
adopt SPF or DomainKeys instead.
------------------------------------------------------------------------
---------------

What the heck do they mean by this? Xmail doesn't support callback 
verification, does it?


Matic


CLEMENT Francis pravi:
>> -----Message d'origine-----
>> De : [EMAIL PROTECTED]
>> [mailto:[EMAIL PROTECTED] la part de Ivo Smits
>> Envoy=E9 : jeudi 12 juillet 2007 14:11
>> =C0 : [email protected]
>> Objet : [xmail] Re: problem with gmail
>>
>>
>> Maybe glst is dropping the connection when google doesn't=20
>> expect it to be=20
>> dropped..
>> Can you try without glst?
>>
>>     
>
> I don't fing glst is the problem here as :
> 1 - glst is not 'runnable' until "MAIL FROM" and "RCPT TO" are
received =
> (it
> needs a 'triplet' to do correct work)
> 2 - and in any cases, if glst returns a 'drop' code to xmail, then a =
> line
> will appears in the smtp logs with ERR=3DEFILTER
> But here Matic says 'no line in xmail logs at all' for this
connection.
>
> Same case if ip in spammers.tab file, xmail logs the action in smtp =
> log.
>
> I think the problem is not xmail nor any filter after xmail.
>
> Francis
> -
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> [EMAIL PROTECTED]
>
>
>   


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