Re: [exim] detection of "<>" in case of spam.

On Mon, May 13, 2013 at 06:16:40PM +0200, Cyborg wrote:
> small question, how can i detect the usage of "<>" as sender of an
> email in the smtp commands ?

This is an empty address, use it in ACLs as "recipients=:..."
or match as regex ^$, or check by some other way.

> this spam wasn't a bounce mail, just normal spam. Any way of
> deciding on acl levels if it's a true bounce or just a spam ?

Pointless. Considerable amount of junk traffic consists of real
and valid bounces, generated to spam mails with forged addresses.
If you have several old domains with old addresses, some of them
might be used by spammers, and you would get bounces to these
addresses when other sites bounce spam mails.
--
Eugene Berdnikov