Zbigniew Lisiecki wrote:

> reject: RCPT from 63-253-146-115.ip.mcleodusa.net[63.253.146.115]:
> 450 <gw1.office.wwdl.net.>: Helo command rejected: Host not found;
> the mail is rejected, but the spammer seams to occupy the connection


It's not actually "rejecting" the email. It's sending them a 450 "try again later" code.


Try sending them a 554 rejection code, then maybe there wouldn't be so many
connections (retries) from them.

--
Greg