Issue Outgoing emails rejected by Hotmail!

[Kleber Salgado]

Hello everyone,

mails from my Website are rejected constantly for Hotmail! I have already tried different configuration on the Mail-Server but it doesn't work.

Following error message from Hotmail:

----------------------------------------------------
This is the mail system at host h2460447.stratoserver.net.

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

<kasalgado@hotmail.de>: host mx3.hotmail.com[65.54.188.72] said: 550 SC-001
(BAY004-MC1F43) Unfortunately, messages from 85.214.230.93 weren't sent.
Please contact your Internet service provider since part of their network
is on our block list. You can also refer your provider to
http://mail.live.com/mail/troubleshooting.aspx#errors. (in reply to MAIL
FROM command)
------------------------------------------------------

Yahoo has marked my mails as Spam but they reach the postfach at least.

Hostname h2460447.stratoserver.net
IP-Adresse 85.214.230.93
Betriebssystem ‪Ubuntu 14.04.5 LTS‬
Plesk Version 12.5.30 Update #51, zuletzt aktualisiert: 30. Okt. 2016 03:32:53

Any help would be appreciated. Thanks in advance.
KAS

 

[Kleber Salgado]

Some information about Mail-Server configuration:

Mailserver: Postfix
IMAP-/POP3-Server: Dovecot
Post outgoing modus: IPv4 over IP address
Relaying: Authorization necessary, SMTP
Outgoing mails signed: yes

 

[UFHH01]

Hi Kleber Salgado,

pls. consider to use the SEARCH option of the forum and use words as "SPF", "dkim", "opendkim", "dmarc" "DNS" ( and possible COMBINATIONS of the example - WORDS ) for example - you will find a lot of investigation - methods, as well as suggestions and resolutions.

Yahoo has marked my mails as Spam but they reach the postfach at least.

Pls. use for example => "http://mxtoolbox.com/domain/h2460447.stratoserver.net/" to investigate your current setting on your server.
Or/and consider to use for example the site => "http://www.mail-tester.com/".

Pls. consider to CHANGE the "hostname" ( and "mailname" ) on your server, due to the fact that you are not the owner of the domain "stratoserver.net", which makes it difficult for your to modify/add possible additional DNS - entries for "SPF", etc. I would suggest to use your MAIN - DOMAIN and choose a servername of your choice for it. Don't forget to add an A - entry on your primary nameserver for that domain!

Examples:

File on your server: "/etc/hosts"

127.0.0.1    localhost.localdomain    localhost[/INDENT]

85.214.230.93    YOUR-DESIRED-SERVERNAME.YOUR-MAIN-DOMAIN.de    YOUR-DESIRED-SERVERNAME

127.0.0.1    YOUR-DESIRED-SERVERNAME.YOUR-MAIN-DOMAIN.de    YOUR-DESIRED-SERVERNAME

File on your server: "/etc/hostname"

YOUR-DESIRED-SERVERNAME.YOUR-MAIN-DOMAIN.de

File on your server: "/etc/mailname"

YOUR-DESIRED-SERVERNAME.YOUR-MAIN-DOMAIN.de

Consider to set your new hostname over the Plesk Control Panel: Home > Tools & Settings > Server Settings​

 

[Alberto Pizzarelli]

Hello,

the reason for rejection can be a lot, read the articles below, what I suggest, is to put under your server, respecting all aspects of the corresponding RFC, reverse correct mapping of server IP, SPF, DMARC, and if possible, the digital signature software, such as S / MINE and DKIM (the plesk has this feature).

https://t.co/QjKd6Hk3TX

https://askrahulsingh.wordpress.com...t-able-to-send-email-to-any-hotmail-email-id/

PLEASE NOTE:

your report, has nothing to do with the plesk.

 

[Alberto Pizzarelli]

@UFHH01,

hehehehe, i'm write in the same time, if you want can i delete my message..

 

[Kleber Salgado]

Hello,

thanks a lot for your quick answers. I know, it is not a problem about Plesk. I was looking for some tips how I can configure in the right was the Mail-Server in Plesk. I am going to check your suggestions and I hope I can solve the problem.

Have a nice day,
KAS

 

[SimonG]

Generally speaking, I find that the key steps are to set hostname/mailname, and ReverseDNS.

Then, register with SNDS.

https://postmaster.live.com/snds/

Once you're registered, ask why it's blocked:

https://support.microsoft.com/en-us...fsmsbl3&locale=en-us&ccsid=636135457191780457