Author Topic: Not sending to Hotmail addresses  (Read 493 times)

Offline vikfreemsn

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  • Posts: 1
Not sending to Hotmail addresses
« on: July 30, 2019, 07:34:53 AM »
Only when sending to Hotmail I see this message, I have even tried with VPN to get a new IP address but still encounter the same issue.

This is the mail system at host outmx-131.london.gridhost.co.uk.

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

<vikfan@hotmail.co.uk>: host eur.olc.protection.outlook.com[104.47.126.33]
    said: 550 5.7.1 Unfortunately, messages from [87.247.242.5] 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.
    [PU1APC01FT024.eop-APC01.prod.protection.outlook.com] (in reply to MAIL
    FROM command)

Offline JohnDoh

  • Global Moderator
  • Hero Member
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  • Posts: 2,285
Re: Not sending to Hotmail addresses
« Reply #1 on: July 30, 2019, 08:02:08 AM »
This is not a roundcube issue. The message says hotmail have blacklisted that IP.
Roundcube Plugins: Contextmenu, SpamAssassin Prefs, and moreā€¦