Date: Sat, 22 Jul 1995 20:14:46 -0600 From: Nate Williams <nate@trout.sri.MT.net> To: roberto@blaise.ibp.fr (Ollivier Robert) Cc: hackers@FreeBSD.org Subject: Re: MX records and sendmail Message-ID: <199507230214.UAA00615@trout.sri.MT.net> In-Reply-To: roberto@blaise.ibp.fr (Ollivier Robert) "Re: MX records and sendmail" (Jul 23, 1:25am)
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> > Machine A is connected to the Internet via a SLIP line, which goes down > > whenever I need the phone or need the computer for non-BSD work. > > Machine B is on the Internet full-time, and is the primary DNS box for > > my sub-net. > > You can put two MX like this : > > machine-a IN MX 10 machine-a.network.us. > IN MX 20 machine-b.network.us. Okay, so this should work then. machineA.domain.net preference = 5, mail exchanger = machineA.domain.net machineA.domain.net preference = 10, mail exchanger = machineB.domain.net > if machine-a is up, then the mail will arrive there. If not, the secondary MX > machine-b will then receive the mail and queue it for machine-a. When > machine-a is up, you can run the queue (sendmail -q) on machine-b. Do I need to do anything special to the sendmail.cf on machine B for it to accept email for machine A, or is the MX record enough? > Some providers use a mailertable to put the mail to machine-a in a separate > queue (using a special mailer entry) and then run the queue whenever the > machine-a calls. It is a little harder to set up but works too. Will machine-B attempt to send out the queued email at the -q## intervals, or is MX queued email handled differently? Nate
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