30 Aug
2021
30 Aug
'21
11:34 p.m.
On Mon August 30 2021 12:28:02 Dr. Nikolaus Klepp wrote:
From what I can tell the problem is only on tde
mailing list. Blacklist
check did not show any blacklisting for my maildomain. So without knowing
what triggered RSPAMD_URIBL I have no chance of resolving this.
Hi Nik,
What I'm going to write has some information that might seem private but it
is in fact all from the headers of your email and therefore already widely
published.
As best I can determine your IP (85.126.97.210), domain (klepp.biz), and mail
server (172.31.216.41) are clear. However that first mail server redirects
your mail to a second mail server.
The domain of both mail servers (upcmail.net) and the second mail server's
IP (62.179.121.136) are both listed on various UCEPROTECT RBL lists.
UCEPROTECT blocks whole networks which originate a lot of spam, so you're
being blocked either because of spam through upcmail.net or (more likely)
spam from other hosts on the same net as the second mail server.
I'm a postmaster and I don't use UCEPROTECT because (a) it has a lot of
false positives and (b) I've been bitten by UCEPROTECT when another VPS
at one of the hosting services I use had sent some spam.
You could try:
(a) Asking Slávek if there's anyway he can ignore UCEPROTECT and aggregates
that use UCEPROTECT.
(b) Working through http://www.uceprotect.net/ to try to remove the listings
(but they will probably return).
(c) Moving to a different mail server that is less tolerant of outbound spam.
--Mike