Offtopic: Postfix Question

[Drew Marshall]

On 21 May 2006, at 14:05, --[UxBoD]-- wrote:

> Hi All,
>
> i have found that when I receive emails to my server I get the "to"  
> element including both my actual email address, and my address of  
> the mail server
> ie.
>
> From:mailscanner-bounces at lists.mailscanner.info  	 
> To:uxbod at splatnix.net,uxbod at mailhub.splatnix.net
>
> My domain is setup as a virtual so anything at domain.com will drop  
> into a single mailbox.  This causes havoc with white/black lists.   
> Anybody know how
> to stop this ?

Don't use virtual addresses like this I am afraid. This is caused by  
the virtual aliasing in Postfix being done by the cleanup agent just  
after the message is accepted by smtpd, both of which happen before  
MailScanner sees the message hence causing the double address list.

The only other thing I would add is you would be better blacklisting  
at Postfix level, which would also get round this problem. Just put  
the blacklisted recipient address address in transport.cf with the  
right handside of the table with error:<your reason here> and postmap  
transport.cf. You can also blacklist incoming addresses using client  
access with addresses/ domains/ ip addresses. Just put an entry in  
main.cf under smtpd_client_restrictions = check_client_access hash:/ 
etc/postfix/client_access http://www.postfix.org/access.5.html gives  
more details.

If this is a problem, I suggest using the local aliases (Which get  
aliased by trivial-rewrite post MailScanner) which would get round  
this problem. Just depends on how many domains you are hosting and  
the practicalities in your system.

Drew

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