On 25-Aug-2001 Edinilson J. Santos wrote: > Davide, > > How to configure XMail correctly to work with M$ Exchange Server 5.5 and > ETRN? > The problem is that the client with Exchange will not have a fixed IP > address and will connect via modem during the day. What's the problem of not having a fixed IP address ? > > Thanks > > Edinilson > > ps: I saw this for sendmail in http://cgi.shellnet.co.uk/etrn.html but I´m > in doubt if it works with XMail. > ----------------------------------------------------------- > > Basically (I hope I make myself clear by this), ETRN works like this: > > You set a domain, x.com to have the following MX records: > > MX 5 mail.x.com > MX 10 smtp.you.com > MX 15 smtp.fallbackserver.com > > mail.x.com should be the clients machine who wishes to use ETRN, ie, > the static IP address of their modem. This means, of course, that when > someone sends a mail to [EMAIL PROTECTED], their mailserver tries to talk > to mail.x.com, and fails - because your client is not dialed in, for > example. Their mailserver then takes smtp.you.com, as having the next > best MX record, and tries to talk to your mail server, succeeding. > > Your mailserver should not be setup to do anything with the mail for > x.com, but sinmply queue it. i.e, you shouldn't have x.com in either > your CW file or Virtusertable (if any) - However if you are using > sendmail8.9.x with Anti-Relaying features you should add x.com into > the list of allowed domains you relay for. > > When a mail arrives into your sendmail server, you can check to see > what stage the mail is at by running mailq. You should see someting > similar to this: > > Mail Queue (39 requests) > --Q-ID-- --Size-- -----Q-Time----- ----Sender/Recipient-------- > HAA27892 3617 Fri Sep 25 07:53 > (Deferred: Operation timed out with mail.x.com.) > > > Sendmail is trying every 30 minutes (if you run sendmail with -q30m) > to contact mail.x.com and send the mail. > > When your ETRN client dials in, having been assigned a static IP > corresponding to mail.x.com, they send the following to sendmail: > > ETRN x.com > > Sendmail takes this as time to process the queue for mail.x.com, so if > you send such a command to sendmail you'll see the following if you > run ps axu: > > root 2479 0.3 1.1 704 1076 ?? S 1:54PM 0:00.03 > sendmail: NAA02383 mail.x.com.: user open (sendmail) > > sendmail is trying to connect to mail.x.com and dequeue the relevant > mail. Assuming your client is dialed in then sendmail will be able to > ... sendmail :) Yes it works. - Davide
