hello eximmers,
I would like to use my mailserver to help a friend that has a mailserver
behind a very unreliable internet connection; both servers are exim 2.05
on debian 2.1; AFAIK what I have to do is:
- config DNS so that, if his connection is down, mail for his domain
will arrive at my box;
- in my exim config I have to:
- list his domain in relay_domains
- define a special set of retry rules for his domain so that mail will
sit here until his connection comes up instead of returning an error
message;
my questions are:
- is this what is called an "MX backup"?
- is there a 'standard' set of retry rules for this situation?
- is there a way for his box to send me a request for a queue run as
soon as its connection is re-established?
- is there anything more to be done? how would exim handle the following
situation: a domain called domain.com has two 'MX backups' like in..
@ IN MX 10 mail.domain.com
@ IN MX 20 mail.friend-a.com
@ IN MX 20 mail.friend-b.com
if mail.domain.com is unavailable, then mail.friend-a.com has to know
that it should wait for mail.domain.com to come up instead of sending
messages to mail.friend-b.com thus creating a loop!
thanks for reading this far!
beers,
--
Otavio Exel /<\oo/>\ oexel@???
