On 03/03/16 08:58, wilfried.es...@essignetz.de wrote: >> I was guessing that this would have to be aliased but didn't see it in the >> documentation for >> canonical. Is it the correct way to set up full.name mapping to local users? >> Also I'm more used to >> sendmail and qmail. This is my first time configuring postfix. > > Correct is probably the wrong word. > > If you need mailadresses, that aren't the same as loginnames or > mailboxnames, you have to define aliases. For me, using aliases, instead > of internal usernames, is the usual way. But, usually, i don't use > canonical for that. Maybe it makes sense, when changing from mailaddress > scheme "firstname" to, e.g., "first.lastname". > > You can define aliases also in virtual table. >
Still wading through the doco. From what I can determine /etc/postfix/canonical is used to rewrite the envelope and headers. From the doco http://www.postfix.org/ADDRESS_REWRITING_README.html: ---8<--- Canonical address mapping The cleanup(8) daemon uses the canonical(5) tables to rewrite addresses in message envelopes and in message headers. By default all header and envelope addresses are rewritten; this is controlled with the canonical_classes configuration parameter. ---8<--- Local alias database When mail is to be delivered locally, the local(8) delivery agent runs each local recipient name through the aliases(5) database. The mapping does not affect addresses in message headers. Local aliases are typically used to implement distribution lists, or to direct mail for standard aliases such as postmaster to real people. The table can also be used to map "Firstname.Lastname" addresses to login names. ---8<--- My apologies that I didn't read _all_ the doco before attempting the mapping. So my understanding is now that the /etc/postfix/canonical file allows envelope and header rewrites to the final delivered email but /etc/aliases is used to create the actual mapping for firsname.lastname to a local user and that is necessary for successful delivery of email. So, if out of two users, shaun and tom and I have only canonicalised tom as follows: /etc/aliases: shaun.fielder: shaun tom.robinson: tom /etc/postfix/canonical: tom tom.robinson Using sendmail to generate a report helps explain what happens: /usr/sbin/sendmail -bv tom in the report I can see the mail is deliverable to the local user (t...@motec.com.au) but the To: is rewritten to tom.robin...@motec.com.au: ---8<--- The mail system <t...@motec.com.au> (expanded from <tom>): delivery via local: delivers to maildir ---8<--- Final-Recipient: rfc822; t...@motec.com.au Original-Recipient: rfc822; tom Action: deliverable Status: 2.0.0 Diagnostic-Code: X-Postfix; delivery via local: delivers to maildir --66BDF295D.1456957031/camber.motec.com.au Content-Description: Message Headers Content-Type: text/rfc822-headers Return-Path: <r...@motec.com.au> Received: by camber.motec.com.au (Postfix, from userid 0) id 66BDF295D; Thu, 3 Mar 2016 09:17:11 +1100 (AEDT) DKIM-Filter: OpenDKIM Filter v2.10.3 camber.motec.com.au 66BDF295D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=motec.com.au; s=mail.motec.com.au; t=1456957031; bh=47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=; h=From:Subject:To:Date:From; b=dWhEOD1NdRiFqTz/bHCytLEWfZiuQiqi1nSY058RhH3oZsZ44SWvPe3ihAUfHlOA3 fNK39lnH5+dejADrx++k03VXgyjfNLL54+lyiQuCU2OnJrRQoJP8ll1KShgm7AvPlv +cMeDrR1mXrzHC8nEDsQch3cjzD9+STDmph6Ko+E= From: r...@motec.com.au Subject: probe To: tom.robin...@motec.com.au Message-Id: <20160302221711.66bdf2...@camber.motec.com.au> Date: Thu, 3 Mar 2016 09:17:11 +1100 (AEDT) --66BDF295D.1456957031/camber.motec.com.au-- ---8<--- Using sendmail again for user shaun (who has _no_ canonicalisation to firstname.lastname): /usr/sbin/sendmail -bv shaun in the report I can see the mail is deliverable to the local user (sh...@motec.com.au) but the To: is unchanged: ---8<--- The mail system <sh...@motec.com.au> (expanded from <shaun>): delivery via local: delivers to maildir ---8<--- Final-Recipient: rfc822; sh...@motec.com.au Original-Recipient: rfc822; shaun Action: deliverable Status: 2.0.0 Diagnostic-Code: X-Postfix; delivery via local: delivers to maildir --D8F30295D.1456957257/camber.motec.com.au Content-Description: Message Headers Content-Type: text/rfc822-headers Return-Path: <r...@motec.com.au> Received: by camber.motec.com.au (Postfix, from userid 0) id D8F30295D; Thu, 3 Mar 2016 09:20:56 +1100 (AEDT) DKIM-Filter: OpenDKIM Filter v2.10.3 camber.motec.com.au D8F30295D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=motec.com.au; s=mail.motec.com.au; t=1456957256; bh=47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=; h=From:Subject:To:Date:From; b=VZaX2Z1dmJy+X6qXe28KFco8blbjQ6kNJM5XyQR+Y1Q7mHlTqvbrHAfEETF6rHp+A 3TmA1fPc3Cb0V7MAJzi2It76CkNvB6ODciiuxNThl/AnV/5yr724zco1MoHGF6/xsH vMNOYc6UAGdfVrZ67mK7orGu4XlBY7jUQXEXTlU8= From: r...@motec.com.au Subject: probe To: sh...@motec.com.au Message-Id: <20160302222056.d8f302...@camber.motec.com.au> Date: Thu, 3 Mar 2016 09:20:56 +1100 (AEDT) --D8F30295D.1456957257/camber.motec.com.au-- ---8<--- There's more control to be gained through the canonical_classes which defaults to envelope_sender, envelope_recipient, header_sender, header_recipient rewrites. Also you can specifically canonicalise just sender or recipient classes through /etc/postfix/{sender,recipient}_canonical. Finally, from the doco http://www.postfix.org/ADDRESS_REWRITING_README.html Virtual aliases can be used to transform Firstname.Lastname to local users but confirms that local aliases may be more appropriate: ---8<--- Virtual aliasing Before writing the recipients to the queue file, the cleanup(8) daemon uses the optional virtual(5) alias tables to redirect mail for recipients. The mapping affects only envelope recipient addresses; it has no effect on message headers or envelope sender addresses. Virtual alias lookups are useful to redirect mail for virtual alias domains to real user mailboxes, and to redirect mail for domains that no longer exist. Virtual alias lookups can also be used to transform " Firstname.Lastname " back into UNIX login names, although it seems that local aliases may be a more appropriate vehicle. ---8<--- Thanks Willi for keeping me sane and providing the key to unlocking this. Hopefully I've understood it now. Any comments are welcome. Kind regards, Tom -- Tom Robinson IT Manager/System Administrator MoTeC Pty Ltd 121 Merrindale Drive Croydon South 3136 Victoria Australia T: +61 3 9761 5050 F: +61 3 9761 5051 E: tom.robin...@motec.com.au
signature.asc
Description: OpenPGP digital signature
