On 11/06/2021 16:51, Hans-Martin Mosner via mailop wrote:
Am 11.06.21 um 06:14 schrieb Noel Butler via mailop:
MS sending out mail with no rdns?
Jun 10 09:20:20 cust-mta01 postfix/smtpd[8137]: NOQUEUE: reject: RCPT
from unknown[40.92.62.80]: 554 5.7.1 Client host
rejected: cannot find your reverse hostname, [40.92.62.80];
from=<[email protected]> to=<x@xxxxxx> proto=ESMTP
helo=<AUS01-SY4-obe.outbound.protection.outlook.com>
This is probably something that you wouldn't miss. Outlook.com and
hotmail.com accounts (most likely created by bots)
are being used to spam massively for the last couple of days/weeks.
these are confirmed legitimate emails being affected by MS not have rdns
on those servers, we will not whitelist, there are many Australian
ISP/ASP's being affected, its been discussed over several days.
--
Regards,
Noel Butler
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