On 6/14/2012 9:42 AM, jeffrey j donovan wrote: > > On Jun 13, 2012, at 9:56 PM, jeffrey j donovan wrote: > >> >> On Jun 13, 2012, at 9:39 PM, jeffrey j donovan wrote: >> >>> Greetings >>> it has been a long time since I've done this, and could use some guidance. >>> >>> I have one domain ( example.com ) and 7 systems. >>> >>> mx1.example.com >>> Av1.example.com >>> relay1.example.com >>> relay2.exmple.com >>> imap/pop1 >>> imap/pop2 >>> imap/pop3 >>> >>> each understand their own /etc/aliases file. if I send a message to >>> someal...@machine.example.com it works fine. >>> when i try to send to aliasn...@example.com, all the machines kick it to >>> the MX server ( which has a transportmap for example.com ) and I get a loop. >>> >>> aliasname: lukeskywal...@host.example.com >>> >>> can i specify >>> >>> aliasn...@example.com: lukeskywal...@host.example.com >>> >>> right now my MX server is only working when i specify the host name in the >>> message. >>> >>> if there is something I should set in main.cf ? >>> <snip> >>> mydestination = $myhostname, localhost.$mydomain, localhost, example.com, >>> $mydomain >>> mydomain = example.com >>> mydomain_fallback = localhost >>> myhostname = mx1.example.com >>> mynetworks = 127.0.0.0/8 >>> mynetworks_style = host >>> myorigin = $myhostname >>> </snip> >>> >>> -j >> >> >> answering my own question; is this what i need to change ? >> http://www.postfix.org/postconf.5.html >> >> myorigin (default: $myhostname) >> The domain name that locally-posted mail appears to come from, and that >> locally posted mail is delivered to. The default, $myhostname, is adequate >> for small sites. If you run a domain with multiple machines, you should (1) >> change this to $mydomain and (2) set up a domain-wide alias database that >> aliases each user to user@that.users.mailhost. >> >> Example: >> >> myorigin = $mydomain >> >> >> okay part (2) of that answer set up a domain-wide alias database that >> aliases each user to user@that.users.mailhost >> how do i do that properly ? >> >> -j > > Answering my own thread again. the answer was no,.. > changing my origin didn't make any difference. the messages always get sent > to my relays which have no local delivery except > postmas...@relay.example.com. The local aliases file works, but the global ( > domain ) > does not re-write the address it just see's postmas...@example.com, see there > is no transport so it sends back to MX, hence my loop. > > I have read that using virtual alias map may solve the problem. Because the > alias does not have to be local. I have always avoided using these because i > only have one domain, and figured there was no need to setup a virtual. I > guess thi sonly applies if Im using one box and everything is in the box. > > assuming I need to setup a virtual alias map to accept postmaster@domain > which machine should host the database , or should they all have the same > database ? > > any assistance would be helpful thanks. > -j > >
The proper solution is to use a global virtual_alias_maps to map users to the correct server. Use rsync or similar to synchronize the virtual_alias file among the servers. # main.cf virtual_alias_maps = hash:/etc/postfix/virtual # virtual us...@example.com us...@hosta.example.com us...@example.com us...@hostb.example.com ... postmaster works the same way -- postmas...@example.com postmas...@hosta.example.com [optional] On your outgoing gateway use canonical_maps to rewrite hostX.example.com to example.com. -- Noel Jones
