Re: [exim] Callout

W B Hacker schrieb:

> first off, using a machine-generated bogus destination address such as;
>
> <greenmeadow.szaf.org-1285976102-testing@???>
>
> .. is probably going to get you a rejection in ALL cases where the target does
> *recipient* verification.

Yes, that's the point.

See <http://www.exim.org/exim-html-4.40/doc/html/spec_38.html>:
| random: Before doing the normal callout check, Exim does a check for
| a “random” local part at the same domain. The local part is not
| really random – [...]
|
| The idea here is to try to determine whether the remote host accepts
| all local parts without checking. If it does, there is no point in
| doing callouts for specific local parts. If the “random” check
| succeeds, the result is saved in a cache record, and used to force
| the current and subsequent callout checks to succeed without a
| connection being made, until the cache record expires.

I'll have to (re-)evaluate that sometimes; a list of hosts that
blindly accept all recipients would be better, of course.

Regards,
-thh