In our previous episode (Tuesday, 05-Mar-2013), Ashley Aitken said: > Hi, > > I'm having some problems with Snow Leopard Server email (mail bouncing or > taking a long time to get in, an hour or more, in some cases). > > Can someone please help with clear definitions for (and the purpose of) these > settings in the Mail Service > Settings > General tab in Server Admin? > > 1. Domain name: > Enter the local Internet domain name. > > What exactly is this meant to be (and how is it used)?
This is your domain name. like mine is kreme.com and the list is hosted on omnigroup.com. > Currently this is set to "local" > I only have one server that runs mail and web behind our ADSL modem/router > Hopefully, ports are forwarded as appropriate from the modem/router to the > server > I do have an internal DNS setup, with the same domain as external for when > clients are connected locally. > > 2. Host name: > Enter the Internet host name of this mail system > > What exactly is this meant to be (and how is it used)? This is the FQDN of the machine. That is, a name like fred.domain.tld that when looked up by anyone will resolve to the IP address of your computer. > Currently this is set to "mydomain.com" > I would have thought that the Internet host name would have been > mail.mydomain.com as in the MX record? Yes, something like that (although I don't think you are the owner of mydomain.com, which is a real domain, so best not used as an example. example.com is an example domain.) > I think I have used that in the past but my email addresses then looked like > [email protected] :-( Which is technically correct. You have to tell your mail software to treat [email protected] as the same as [email protected]. > 3. Mail > Settings > Relay > > With regards to the delay of emails getting accepted (when they don't bounce > and only from some servers it seems, e.g. Apple mac.com delivered immediately) > > I thought this was caused by my using some "junk mail rejection servers > (realtime blacklist)" > > However, I've check again and I no longer seem to have any of these > configured (are they recommended? which ones?) so something else must be > slowing down the mail delivery. You use the relay if, for example, you have to send all your mail out via your ISP instead of directly to other mail servers, IIRC. > I notice in the mail.log lots of entries like this: > >> Mar 6 12:09:06 server postfix/smtpd[52216]: connect from >> mailserver.easterncontrols.com[70.90.14.220] >> Mar 6 12:09:07 server postfix/smtpd[52216]: NOQUEUE: reject: RCPT from >> mailserver.easterncontrols.com[70.90.14.220]: 450 4.7.1 >> <[email protected]>: Recipient address rejected: Service is unavailable; >> from=<[email protected]> to=<[email protected]> proto=ESMTP >> helo=<mailserver.easterncontrols.com> >> Mar 6 12:09:08 server postfix/smtpd[52216]: lost connection after DATA (0 >> bytes) from mailserver.easterncontrols.com[70.90.14.220] >> Mar 6 12:09:08 server postfix/smtpd[52216]: disconnect from >> mailserver.easterncontrols.com[70.90.14.220] > > I thought this was the realtime blacklisting. Um. don't think so. There's usually an error message. That is a 450 code which means "temporary failure, please try again" which would not be a blacklist. It probably means your setup cannot process incoming mail. > I also see lots of these: > >> Mar 6 12:10:42 server postfix/anvil[51922]: statistics: max connection rate >> 5/60s for (smtp:68.203.211.226) at Mar 6 12:06:03 >> Mar 6 12:10:42 server postfix/anvil[51922]: statistics: max connection >> count 2 for (smtp:134.7.73.150) at Mar 6 12:04:27 >> Mar 6 12:10:42 server postfix/anvil[51922]: statistics: max cache size 4 at >> Mar 6 12:05:25 > > Are these just spam sites or is something wrong my end? Hard to say, probably. One is a residential road runner user, the other a staff computer at an edu site in Australia. > I have checked my email service from outside, using the Web sites that check, > and it all seems fine - no open relay, mail server matches reverse dns, etc. Are you getting any email? -- If it wasn't for the pirates, I bet Star Wars: Ep III would have mad $50 million its first DAY! _______________________________________________ MacOSX-admin mailing list [email protected] http://www.omnigroup.com/mailman/listinfo/macosx-admin
