Ralf Hildebrandt wrote:
* Jake Vickers <[EMAIL PROTECTED]>:
Is there a more efficient place to check for a reverse DNS address
rather than using reject_unknown_reverse_client_hostname in
smtpd_recipient_restrictions?
Define "efficient"
I'd like to check the reverse mapping at the earliest possible time and
deny the connection if necessary. Not sure if it generates an error
message for the sender (I can see where this could be a backscatter
issue), so in what contexts, if defined, would it do so?
Are there any pros/cons to checking this at another time rather than in
smtpd_recipient_restrictions?
Thanks.
