Us as well.
We are in the US. That is OUR IP space announced by our ASN.
So I assume we would qualify as a commercial ISP.
That IP (and for the most part our IP space) is clean. That IP has been
active for years.
I doubt they have seen our IPs before as our customers here in Southern
California don't send a lot of email to them
They clearly have a default 'block' policy. The reject message is
presented immediately upon connection.
$ telnet mx00.t-online.de 25
Trying 194.25.134.8...
Connected to mx00.t-online.de.
Escape character is '^]'.
554 IP=66.254.66.70 - A problem occurred. (Ask your postmaster for help
or to contact t...@rx.t-online.de to clarify.)
Connection closed by foreign host.
-bill
On 10/19/2022 5:46 AM, Kai 'wusel' Siering via mailop wrote:
On 19.10.22 14:25, Stefano Bagnara via mailop wrote:
On Wed, 19 Oct 2022 at 13:32, Heiko Schlittermann via mailop
<mailop@mailop.org> wrote:
A given mailhost (ran privately for smaller entities) can't send
messages to T-Online anymore.
554 IP=168.119.159.241 - A problem occurred. …
Do you get this error at the connection or after you transmitted the
message?
$ telnet mx00.t-online.de 25
Trying 194.25.134.8...
Connected to mx00.t-online.de.
Escape character is '^]'.
554 IP=378.294.445.288 - A problem occurred. (Ask your postmaster for
help or to contact t...@rx.t-online.de to clarify.)
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