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Problems sending mail to Hotmail accounts

Dragon_14
Hooked
Posts: 6
Thanks: 1
Registered: ‎28-03-2020

Problems sending mail to Hotmail accounts

Over the last couple of days all mails sent by us to Hotmail addresses have been spat back: 

SMTP error from remote server for MAIL FROM command, host: hotmail-com.olc.protection.outlook.com (xxx.xx.xx.xxx) reason: 550 5.7.1 Unfortunately, messages from [xx.xxx.x.xxx] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3140). 

 

If this error message is correct, could someone at Plusnet please get us unblocked?

 

Thanks.

3 REPLIES 3
dvorak
Moderator
Moderator
Posts: 27,036
Thanks: 5,360
Fixes: 1,344
Registered: ‎11-01-2008

Re: Problems sending mail to Hotmail accounts


Moderators Note


This topic has been moved from Chat to Email

Customer / Moderator
If it helped click the thumb
If it fixed it click 'This fixed my problem'
Townman
Superuser
Superuser
Posts: 18,300
Thanks: 7,582
Fixes: 77
Registered: ‎22-08-2007

Re: Problems sending mail to Hotmail accounts

550 5.7.1 Unfortunately, messages from [xx.xxx.x.xxx] weren't sent

-------------------------------------------

Is xx.xxx.x.xxx and IP address?

If yes, what are the first 3 octets please?  Without there, there is little chance of identifying the issue.

550 5.7.1 is an error code which can arise for a host of reasons and the reason stated might not be entirely helpful.

 

Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.

Dragon_14
Hooked
Posts: 6
Thanks: 1
Registered: ‎28-03-2020

Re: Problems sending mail to Hotmail accounts

Thanks for your interest, but this has now been resolved.