Is it not possible to monitor different IP addresses, both on port 25? Then I could change the MX records for mail delivered to the "Sendmail IP" to the "Qmail IP"?
What about setting up Qmail to answer on port 2525 (or whatever) then configure Sendmail to forward all mail to localhost:2525? Or use iptables to route mail from one IP on port 25 to localhost:2525? Or use Procmail on a domain-by-domain basis to directly inject messages to Qmail? I do have access to a second server, but don't want to use it for mail. But I could migrate all Sendmail users to that server, then migrate all users back after installing QT on the current server. (Yikes, two steps back, one forward!) Or, since the second server is an identical OS, installing QT there, doing full testing and ensuring everything works and is tuned the way I want it. Then turn off Sendmail on my current server, install QT using the same process, copy the configuration over from the second server, migrate all users and mail, then just "turn it on." This assumes the new QT install will work as well on the current server as the second server. If it doesn't work I can re-enable Sendmail and start over (possibly losing some messages). I'm less concerned with POP/IMAP. Do you think I should expect any errors with courier as a drop-in replacement for Dovecot? It worked on the first try for me during my original testing. Or, what about continuing to use Dovecot? Has anyone used QT with Dovecot? It seems to be a pretty good/light-weight software. There has got to be a way... Quinn On Tue, 26 Sep 2006 19:43:52 -0400, Jake Vickers wrote: > Quinn Comendant wrote: >> Wow. That doesn't sound good! =( >> >> I'm actually totally surprised. I _honestly_ thought this would have >> been a common migration process. You're telling me *nobody* has ever >> upgraded from sendmail to QT, on the same machine? >> >> I will need to find _some_ solution. What are my options, as painful >> as they might be? >> > Not on the same machine; if both daemons answer port 25, who wins? > There have been several people that have moved from sendmail to > qmail. I have a bunch of scripts that were given to me a LONG time > ago for this purpose that I've handed off to a few other people. > No one has ever tried doing it on the same machine, though. I don't > even see how it could be done in my head (okay, not even remotely > easily) without running vmware or something. > My suggestion would be to build a Toaster box, migrate all of your > email data over, and then in the middle of the night switch cat-5's > or IPs. > > --------------------------------------------------------------------- > QmailToaster hosted by: VR Hosted <http://www.vr.org> > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- QmailToaster hosted by: VR Hosted <http://www.vr.org> --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
