Re: sendmail, user catchalls, and other MTA hate

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From: Michael Ahlers
Subject: Re: sendmail, user catchalls, and other MTA hate
Date: 13:58 on 26 May 2006
This may not be helpful if you really want to use Sendmail (blech),  
but I know Postfix fully supports RFC 3598 (Subaddress Extension,  
http://rfc.net/rfc3598.html) and allows you to specify whichever  
delimiter you prefer (http://www.postfix.org/postconf. 
5.html#recipient_delimiter).  Postfix is very common in core package  
sets of just about every Linux distribution, AFAIK.

On May 25, 2006, at 8:14 PM, Zach White wrote:

> So I'm rebuilding a machine that at various times over the years  
> has run
> qmail and courier. Both of those pieces of software have a really nice
> feature where you can email user-<something>@domain, and if
> user-<something> doesn't exist on the machine the mail will get  
> delivered
> to user. In fact, I'm pretty sure that qmail originated this  
> feature, but
> I'm too hateful right now to verify that.
>
> So in rebuilding this machine, I decide that rather than install a
> different MTA, I'll go with sendmail, which comes with the machine.
> Contrary to past experience, sendmail really isn't as hateful as I was
> prepared for it to be. Except when it comes to making sure that my
> 623,612 subscriptions that use zwhite-<listname> still work without
> specifying each one in either aliases or virtusertable.
>
> Nothing in the documentation about how to do that. Nothing in the FAQ.
> Nothing I can find using google. It doesn't help that google  
> ignores the
> + and - characters in searches, either.
>
> According to a friend who is a sendmail ninja, I'll have to change the
> source. Good thing that + isn't used very often in code, isn't it?
>
> root:/usr/src/gnu/usr.sbin/sendmail:35# grep -r '+' . | wc -l
>     4336
>
> HATE HATE HATE
>

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