Can't email Microsoft contacts

    hotmail-com.olc.protection.outlook.com[104.47.17.161] said: 550 5.7.1
    Unfortunately, messages from [193.X.X.X] weren't sent. Please contact
    your Internet service provider since part of their network is on our block
    list (S3150). You can also refer your provider to
    http://mail.live.com/mail/troubleshooting.aspx#errors.
    [VI1EUR05FT031.eop-eur05.prod.protection.outlook.com
    2023-05-03T23:10:17.681Z 08DB4C283DF9DD73] (in reply to MAIL FROM command)

Randomly I got this. I have all records. I can email Gmail contacts etc…

Records below:

MX
myweb.com
mail.myweb.com

TXT
default._domainkey
v=DKIM1; etc…

TXT
_dmarc
v=DMARC1; p=none;

TXT
myweb.com
v=spf1 a mx ip4:193.X.X.X ~all

A
mail
193.X.X.X

A
@
193.X.X.X

What am I doing wrong? and I also have rDNS set…

Hello @nlkocx

Ubuntu 20.04

Last CyberPanel versions, builds, commits… I updated it yesterday night.

You have to contact Microsoft to unblock your IP. It’s bit pain in the ass but they unblocked me after 5 days of mailing to them.

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