Roundcube webmail weigert verzenden
Geplaatst: 07 aug 2026, 11:57
Als ik de mails wil afhandelen en beantwoorden in de Roundcube webmail dan worden de mails naar hotmail/live gebruikers niet verzonden en krijg ik met foutmelding weer terug. Hoe is dit op te lossen? Het gebeurd bij alle hotmail adressen.
This is the mail system at host plesk.windinternet.nl.
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.
host
hotmail-com.olc.protection.outlook.com[52.101.73.27] said: 550 5.7.1
Unfortunately, messages from [90.145.127.145] 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. [Name=Protocol
Filter Agent][AGT=PFA][MxId=11BDE8022B460CBF]
[AMS0EPF000001A2.eurprd05.prod.outlook.com 2026-08-07T09:14:31.504Z
08DEF401162B13F0] (in reply to MAIL FROM command)
This is the mail system at host plesk.windinternet.nl.
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.
host
hotmail-com.olc.protection.outlook.com[52.101.73.27] said: 550 5.7.1
Unfortunately, messages from [90.145.127.145] 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. [Name=Protocol
Filter Agent][AGT=PFA][MxId=11BDE8022B460CBF]
[AMS0EPF000001A2.eurprd05.prod.outlook.com 2026-08-07T09:14:31.504Z
08DEF401162B13F0] (in reply to MAIL FROM command)