Re: [exim] how to drop failed DSN?

Chad Leigh -- Shire.Net LLC wrote:
> !verify = recipient/callout=2m,defer_ok,random
[...]
> However, after I did this, I could not send to the exim list! (I
> also tried without the random).
>
> What am I missing?

I guess the problem is the following:

$ host -t MX exim.org
exim.org mail is handled by 5 sesame.csx.cam.ac.uk.
$ telnet sesame.csx.cam.ac.uk 25
Trying 131.111.8.41...
Connected to sesame.csx.cam.ac.uk.
Escape character is '^]'.
220 sesame.csx.cam.ac.uk ESMTP Exim 4.54 Thu, 04 Jan 2007 17:07:48 +0000
ehlo inode.at
250-sesame.csx.cam.ac.uk Hello torwaechter.inode.at [213.229.17.132]
250-SIZE 52428800
250-8BITMIME
250-PIPELINING
250-AUTH CRAM-MD5
250 HELP
mail from: <>
250 OK
rcpt to: exim-users@???
550 "Recipient never sends mail so cannot cause bounces"
quit
221 sesame.csx.cam.ac.uk closing connection
Connection closed by foreign host.

Try using "use_postmaster" option for the callout. (See section 39.33 of
the exim specification.)


To the admin of sesame (if he/she's reading this list): I think it would
be better to reject bounce mails after DATA, so these callouts can
succeed. At least that's what I'm doing over here.

lg,
daniel