On Mar 6, 2013, at 2:00 PM, [email protected] wrote: > Message: 3 > Date: Wed, 6 Mar 2013 13:34:22 +0800 > From: Ashley Aitken <[email protected]> > Subject: Re: Snow Leopard Server Mail Settings? > To: "[email protected] OSX" <[email protected]> > Message-ID: <[email protected]> > Content-Type: text/plain; charset=us-ascii > > > Hi Mike (et al.), > > Thank you for your very helpful post Mike. > > On 06/03/2013, at 12:31 PM, Mike Friedman <[email protected]> wrote: >> >> By default, greylisting is turned on. That's the issue you're having. This >> delays email being delivered to reduce spam. Spammers will rarely if ever >> retry a send., If it fails, they give up after one. But a properly >> configured server will try again after a given interval. >> >> This explains how to turn if off. Be careful though because it can >> accidentally get turned on. Apple's server admin doesn't respect hand edited >> configuration files very well. >> >> http://labs.hoffmanlabs.com/node/1755 > > After posting, I became aware also that I was confusing real-time > blacklisting with greylisting. I have used real-time blacklisting in the > past as well but I believe I turned it off for some reason. > >> From what I read it sounds like a good thing to have greylisting - IIRC it >> did reduce my spam significantly, apparently because spammers don't retry >> bounced emails - so I will leave it on. > > >> To answer your questions in order. >> >> 1. Your internet domain should be one of the domains that you receive mail >> for such as : blahblah.com. > > I am sorry to be pedantic (because postfix is ;-) but do you really mean any > domain? I receive mail for a handful of domains? How will it be used? E.g. > I don't want email replying from one domain for another. > > As I mention, I current have this as "local" which has seemed to work fine, > since I guess it is a (local) domain from which the server receives email > for. Can I leave this as that? > >> 2. The host name is the public host name of the system (your MX record will >> tell you what this should be). mail.blahblah.com would be a common one for >> the domain in #1. > > By public host name I guess you mean FQDN? > > I have set this as the public host name of the server (which is the MX > record) mail.mydomain.com but then I seem to remember emails replying with > addresses like [email protected], which didn't look very good. > > I currently have this as "mydomain.com" and it seems to work ok (maybe). Can > I leave this as that? Sorry, again just trying to be clear. > > >> You should also set up a reverse DNS lookup for your mail server's public >> name. Some servers will reject mail that doesn't have a correct reverse DNS >> lookup. Your ISP can do this for you since they control the DNS for the IP >> addresses that they give out to their customers. > > I have that thanks. > > Finally, if you don't mind me asking another question, in Mail Server > > Advanced > Hosting, there are another two setting as well that are not very > clear: > > 1. Include server's domain as local host alias > Checked on. > > What does that actually mean? I can't parse that sentence (fragment)? > > I currently have all sorts of things in here, e.g. mail.mydomain1.com, > mydomain1.com, <public host name>, mail.mydomain2.com, mydomain2.com ... > > 2. Enable virtual hosting > Checked on. > > What does this actually do? > > Until today I think I had that on but with out any entries, and I thought I > was hosting virtual domains just fine. It has all worked fine. > > Today I added mydomain1.com just to see if it would fix things. > > Do I need this? What does it do? > > Sorry for all the questions, and thanks again for your assistance. > > Cheers, > Ashley.
If you are hosting multiple domains, you'll need to use Virtual Hosting. To get email separated into various domains takes some work with the Postfix configuration files. The GUI setup is too simplistic to handle more than two domains very efficiently. But it can be done. You add the Domain to the Virtual Hosting section. Then in Workgroup Manager you add another username to whichever users use that domain in the form [email protected]. I'd also suggest read some of Postfix Virtual Hosting documentation. Best, Tim Roberts_______________________________________________ MacOSX-admin mailing list [email protected] http://www.omnigroup.com/mailman/listinfo/macosx-admin
