Hey all, I'm folloiwng up on this thread I started about two months ago. I haven't had time to revisit it or implement any of your suggestions until now. So this is a delayed response, but thank you for the ideas, Bowe and Sam!
Sam Varshavchik wrote at 10:05 PM (-0400) on 6/9/11: >One thing you can do is redefine a local domain. If you are example.com, >rather than defining example.com as a local domain, define instead >mailhost.example.com as a hosted domain, and install an alias > >u...@example.com: u...@mailhost.example.com That's an interesting and clever approach. Would this properly pass through ad hoc local-part extensions, e.g. for mail addressed to user-someth...@example.com -> user-someth...@mailhost.example.com? Bowie Bailey wrote at 9:47 AM (-0400) on 6/10/11: >My solution to this problem is to take the secondary server offline. If >the primary server goes down, the sending servers will queue the mail >for you for a reasonable amount of time (generally at least 24 hours, >although I think 3-5 days is most common). This should give you plenty >of time to repair the primary server or activate the secondary as a >temporary replacement. Since mail is not being delivered while the >primary server is down in either case, does it really matter whose queue >the mail sits in? That's a good point. On reflection, this is probably the most sensible solution. You've unearthed the nut of it in the final sentence above. Frankly, aside from expediting the delivery of mail following a failure of the primary, I can't think of a good reason why I've been adamant about accepting mail on two machines. >You can leave the secondary MX record in place even if the server is >offline. This will not have any negative side effects and may even help >to reduce spam since spammers frequently try the lower-priority server >first. In that case, I think what I may do is leave my configuration as it is, but simply shut down courier on the secondary machine. In a pinch I can simply start up courier again to begin queueing mail, or switch the secondary over to primary mode. This solution is so simple and obvious, I'm a bit flummoxed why it has taken me so long (several years) to come to this conclusion. Obviously, at various points in time, I've seen merit in having more than one machine online and capable of receiving mail, but I seem to have now forgotten what I thought they were. cheers, -ben -- Ben Kennedy, chief magician Zygoat Creative Technical Services http://www.zygoat.ca ------------------------------------------------------------------------------ uberSVN's rich system and user administration capabilities and model configuration take the hassle out of deploying and managing Subversion and the tools developers use with it. Learn more about uberSVN and get a free download at: http://p.sf.net/sfu/wandisco-dev2dev _______________________________________________ courier-users mailing list courier-users@lists.sourceforge.net Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
