Hallo,

leider erreiche ich seit Wochen verschiedene Bekannte nicht, die bei MSN und Citycom ihre Mailadressen haben. Und dabei ist egal ob ich die Mail

- von der T-Online-Mail-App vom Smartphone

- aus dem T-Online-eMail-Center

- oder von Mozilla Thunderbird sende.

Es erscheint immer folgende Antwortmail:

This is the mail system at host mailout08.t-online.de.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The mail system

<____________@muenster.de>: host mail.citykom.de[89.245.133.5] said: 554 message
rejected as SPAM (#5.3.0) (in reply to end of DATA command)

Reporting-MTA: dns; mailout08.t-online.de
X-Postfix-Queue-ID: 397CD417D1D4
X-Postfix-Sender: rfc822; Martin.Seibuechler@t-online.de
Arrival-Date: Mon, 8 Jun 2020 22:48:38 +0200 (CEST)

Final-Recipient: rfc822; __________@muenster.de
Original-Recipient: rfc822;___________@muenster.de
Action: failed
Status: 5.0.0
Remote-MTA: dns; mail.citykom.de
Diagnostic-Code: smtp; 554 message rejected as SPAM (#5.3.0)

Dies passiert mir auch bei Mails an Freunde, die bei MSN ihre Mailadresse haben.

This is the mail system at host mailout11.t-online.de.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The mail system

<_____________@msn.com>: host msn-com.olc.protection.outlook.com[104.47.6.33]
said: 550 5.7.1 Unfortunately, messages from [194.__.__.__] weren't sent.
Please contact your Internet service provider since part of their network
is on our block list (S3140). You can also refer your provider to
http://mail.live.com/mail/troubleshooting.aspx#errors.
[VE1EUR02FT047.eop-EUR02.prod.protection.outlook.com] (in reply to MAIL
FROM command)

<_____________@msn.com>: host msn-com.olc.protection.outlook.com[104.47.6.33] said:
550 5.7.1 Unfortunately, messages from [194.__.__.__] weren't sent. Please
contact your Internet service provider since part of their network is on
our block list (S3140). You can also refer your provider to
http://mail.live.com/mail/troubleshooting.aspx#errors.
[VE1EUR02FT047.eop-EUR02.prod.protection.outlook.com] (in reply to MAIL
FROM command)

Reporting-MTA: dns; mailout11.t-online.de
X-Postfix-Queue-ID: 6B9C5425C3CC
X-Postfix-Sender: rfc822; ______.__________@magenta.de
Arrival-Date: Fri, 22 May 2020 22:38:01 +0200 (CEST)

Final-Recipient: rfc822; ___________@msn.com
Original-Recipient: rfc822;____________@msn.com
Action: failed
Status: 5.7.1
Remote-MTA: dns; msn-com.olc.protection.outlook.com
Diagnostic-Code: smtp; 550 5.7.1 Unfortunately, messages from [194.__.__.__]
weren't sent. Please contact your Internet service provider since part of
their network is on our block list (S3140). You can also refer your
provider to http://mail.live.com/mail/troubleshooting.aspx#errors.
[VE1EUR02FT047.eop-EUR02.prod.protection.outlook.com]

Final-Recipient: rfc822; ______________@msn.com
Original-Recipient: rfc822;____________@msn.com
Action: failed
Status: 5.7.1
Remote-MTA: dns; msn-com.olc.protection.outlook.com
Diagnostic-Code: smtp; 550 5.7.1 Unfortunately, messages from [194.__.__.__]
weren't sent. Please contact your Internet service provider since part of
their network is on our block list (S3140). You can also refer your
provider to http://mail.live.com/mail/troubleshooting.aspx#errors.
[VE1EUR02FT047.eop-EUR02.prod.protection.outlook.com]

Es nervt mittlerweile.

Viele Grüße

Martin