On Wed, Dec 16, 2020 at 10:07:39PM +1100, li...@sbt.net.au wrote:
> that works well, but, now have a user who gets a valid inbound rejected
>
> Dec 16 15:06:14 postfix/smtpd[8695]: NOQUEUE: reject: RCPT from
> mail-sy4aus01on2077.outbound.protection.outlook.com[40.107.107.77]: 554
> 5.7.1 <sen...@abcd.biz>: Sender address rejected: We reject all .biz
> domains; from=<sen...@abcd.biz> to=<recipient@tld> proto=ESMTP
> helo=<AUS01-SY4-obe.outbound.protection.outlook.com>
>
> is there an easy way, and how, to exempt a specified domain like
> 'abcd.biz' from my sender restriction ?
Exceptions via "DUNNO", as noted by others, are of course an option, but
far better to not impose such crude measures, and not block entire TLDs.
The ".biz" TLD is now well established, and not dramatically more prone
to abuse than the others. Best to rely on a couple of decent RBLs and
a spam-classifying content filter or milter.
--
Viktor.
