Philip Hazel wrote:
> On Tue, 31 Oct 2006, Stanislaw Halik wrote:
>
>> I observed that some MTAs can require RCPT TO arguments to have '<>'
>> around them. How do I do that in Exim?
>
> Yes. That is what the RFC specifies. Exim is, however, liberal by
> default. If you want to check, look at the contents of the $smtp_command
> variable in the RCPT ACL.
>
For the sake of full verification, you should probably also check for it
in the MAIL FROM ACL.
An ACL like this should do the check:
deny
condition = ${if match {$smtp_command}{\N<.*>\N}{no}{yes}}
It could be very interesting to have some stats on how much legit mails
don't have the <> and how many spams don't have them.
