Dear,
Sorry if the text is difficult to understand. I am Brazilian and I do
not have many English language skills.
I'm just sending this email for information.
There we have I was not able to send emails from my server to some
domains [especially those linked to Microsoft (hotmail.como, msn.com,
outlook.com, etc.)].
Then I realized that the IP of my server was listed in the CBL blacklist.
I realized that one of the sites hosted on this server (which is also a
Web server) was infected by malware that was connecting all the time to
IP 192.42.116.41 (port 80 and 443).
This infection comes from Wordpress. One of my hosting clients used an
obsolete version of the Wordpress platform and was eventually hit.
Details here:
https://consultalinux.org/blog/ler_post.php?category=linux&id=129
Almost every source on his site had been encrypted.
Fortunately, the server automatically backs up the database every day.
Just delete the old WP, install the new upload dump of the DB.
After I resolved the problem, the IP was no longer listed.
Regards,
Henrique Fagundes
supo...@aprendendolinux.com
Skype: magnata-br-rj
Linux User: 475399
https://www.aprendendolinux.com
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