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Subject: Re: Sending Mail from Virtual Domains
From: Rick Troxel (rickhelix.nih.gov)
Date: Thu Oct 26 2000 - 09:12:15 CDT

Yesterday (10/25/00), Michael Tokarev wrote:

mjt>"Mills, Wallace" wrote:

>> I have been trying to read and understand postfix and its functions, please
>> correct me if I am incorrect in this asumption.
>> To send an email so that it appears to originate from a virtual domain
>> hosted on a single site, one sets up the pop3 client to reflect that the
>> clients origin is the virtual domain and then you have to set up postfix so
>> it allows relaying from the pop client. Am I correct or ???

mjt>Don't think so. What can pop3 do for sending mail? Pop3 is a
mjt>protocol for retrieving mail from server by client MUA (Mail
mjt>User Agent). Yes, there are some extensions for pop3 protocol
mjt>(namely, xtnd xmit command implemented in qpopper), but that
mjt>extensions are nonstandard and no MUA uses them (well, maybe
mjt>Eudora?).
mjt>"To send an email so that it appears to originate from a virtual
mjt>domain", just set up MUA so that it will place correct from
mjt>address to messages, and that's all. This has nothing to do
mjt>with virtual domains, pop protocol/daemon etc.

Yes, but the pop3 client _machine_ is also the smtp client, which (one
assumes) will need relay access through postfix; so postfix must indeed
be configured to allow relaying. Possibly configuring $mynetworks and
$permit_mynetworks in main.cf will suffice.

Regards, 

-- 
      Rick Troxel      rickhelix.nih.gov     301/435-2983
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