Thanks Dan
Thats pretty much what I understand about it. I have already configured the
dns mx records and it works exept only if I am online during one of the
backup mx (at my isp) attempts to connect to me.
Essentailly what I am looking for now is info on setting up ETRN at my ISP .
I know that qmail supports it so Its just a case of finding out what they
have to do to their qmail server. They dont have any clients like me trying
to use this since they primarily offer pop acces to mail.
Thanks for your imput.
Dean
----- Original Message -----
From: "Dan York" <[EMAIL PROTECTED]>
To: "Dean Mumby" <[EMAIL PROTECTED]>
Cc: "Gordon Rowell" <[EMAIL PROTECTED]>; "e-smith-devinfo"
<[EMAIL PROTECTED]>
Sent: Friday, July 06, 2001 3:44 PM
Subject: Re: [e-smith-devinfo] Dyndns.org and mail
> Dean,
>
> > Surely what you are saying requires using fetchmail ?
>
> No. ETRN was defined by RFC1985 way back in August 1996. It is an
> extension of the SMTP protocol. You can read about it at:
>
> ftp://ftp.isi.edu/in-notes/rfc1985.txt
>
> Essentially what happens is this. In the DNS records for your domain
> you have two MX records defined with lower precedence given to your
> e-smith server (written in DNS zone file notation):
>
> @ IN MX 10 mail.mydomain.xxx
> @ IN MX 20 mail.myisp.net
>
> Anyone trying to send mail to you will have their mail server first try
> to contact 'mail.mydomain.xxx' to deliver your mail via SMTP. Assuming
> your server is online, the mail will be delivered directly to your server.
> If you server is offline, the sending mail server will make a couple of
> attempts to connect to your server. After failing, it will fallback to the
> next listed MX entry, which in this case is 'mail.myisp.net'. The mail
> will be delivered there and (assuming your ISP has it correctly
> configured) will be queued up for you.
>
> When your server comes back online, it initiates a SMTP connection to the
> ISP's mail server and issues the SMTP command 'ETRN'. This causes the
ISP's
> mail server to initiate a SMTP connection to your (now online) mail server
> and deliver directly all the mail that it had queued up to go to you.
> While it is online, your mail server will still be receiving email
directly.
> When it drops offline, the mail will again get queued at your ISP.
>
> > I dont want to have to use fetchmail for my mail. How would I go about
> > getting my isp to support ETRN they have a qmail server , any ideas on
how
> > to configure, install ETRN.
>
> 1. The appropriate DNS MX records need to be set up.
> 2. The ISP has to be able to queue your mail - not sure how that is
> configured.
> 3. The ISP's mail server has to be able to accept the ETRN command
> and send the queued messages to you.
>
> Regards,
> Dan
>
> --
> Dan York, Director of Training [EMAIL PROTECTED]
> Ph: +1-613-751-4401 Mobile: +1-613-263-4312 Fax: +1-613-564-7739
> e-smith, inc. 150 Metcalfe St., Suite 1500, Ottawa,ON K2P 1P1 Canada
> http://www.e-smith.com/ open source, open mind
>
--
Please report bugs to [EMAIL PROTECTED]
Please mail [EMAIL PROTECTED] (only) to discuss security issues
Support for registered customers and partners to [EMAIL PROTECTED]
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Archives by mail and http://www.mail-archive.com/devinfo%40lists.e-smith.org
