[Dovecot] Auto Vacation replies again

[CJ Keist]

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Stephan,
   Thank you.  I understand what you are saying in trying to keep a
vicious cycle of auto-replies responding to each other.  But in our
environment I don't have any choice as our central virus/spam email
gateway will can any message without a valid from address in the headers.
   I will forward this on to our central IT guys that maintain the email
gateway, but I don't hold much hope that they will listen ;).



Stephan Bosch wrote:
> CJ Keist schreef:
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>> Fixed it!!
>>
>> In the file src/sieve_cmu.c line 744:
>>
>> smtp_client = smtp_client_open(src->addr, NULL, &f);
>>
>> change to:
>>
>> smtp_client = smtp_client_open(src->addr, src->fromaddr, &f);
>>
> First of all, this does not control the content of the From: header
> line, but rather the FROM SMTP envelope field.
> 
> This behavior is implemented as such on purpose. From RFC5230
> (http://www.ietf.org/rfc/rfc5230.txt):
> 
> 5.1.  SMTP MAIL FROM Address
> 
>    The SMTP MAIL FROM address of the message envelope SHOULD be set to
>    <>.  [...]
> 
> This is primarily recommended to prevent other (more stupid)
> auto-responders to generate a response to your vacation response (see
> also RFC3834 - 3.3. Message envelope).
> 
> In general I would recommend adjusting the filter accordingly, because
> vacation replies are likely not going to be the only thing it will chew
> on when it is configured to bite things that have an empty return path
> (e.g. mailer daemon status reports and the like).
> 
> Regards,
> 
> Stephan.

- --
C. J. Keist                     Email: cj.keist at colostate.edu
UNIX/Network Manager            Phone: 970-491-0630
Engineering Network Services    Fax:   970-491-5569
College of Engineering, CSU
Ft. Collins, CO 80523-1301

All I want is a chance to prove 'Money can't buy happiness'
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