topic Re: Microsoft email issue in Email

Microsoft email issue

JordanTA — Fri, 15 Aug 2025 13:56:02 GMT

Hi everyone

Just a quick one.

We’re aware that some Plusnet email users are unable to send emails to Microsoft email domains where the email includes multiple addressees. We’re investigating the cause of this with the help of Microsoft.

Until this is resolved fully, please send emails to Microsoft domain addresses as individual emails as an alternative and we are sorry for any inconvenience caused.

Thank you

Re: Microsoft email issue

Tim-J — Sat, 16 Aug 2025 10:25:36 GMT

To be clear, this relates to consumer email services owned by Microsoft, such as Outlook.com, Hotmail, Live mail etc. Is there a problem sending to Microsoft.com as well?

Re: Microsoft email issue

Tim-J — Sat, 16 Aug 2025 10:38:24 GMT

This has been a problem for two months now.
https://community.plus.net/t5/Email/From-address-doesn-t-meet-the-authentication-requirements/td-p/2011107

(500+ posts, though a few relate to a different Gmail problem)

Re: Microsoft email issue

abitpedantic — Thu, 21 Aug 2025 09:05:48 GMT

Oh dear, this looks like a case of the left hand not knowing what the right hand is doing. We thought updates were going to be posted here Sending emails to Microsoft-owned domains such as ... - Plusnet Community

Re: Microsoft email issue

JordanTA — Thu, 21 Aug 2025 09:13:53 GMT

I wasn't aware that page existed until now (right hand is on annual leave, I'm just covering), I'll drop an update on it mentioning the above, although granted it is much the same.

Cheers for letting me know

Re: Microsoft email issue

PhilipHeyes — Thu, 21 Aug 2025 10:16:52 GMT

The suggestion to send email one at a time to Microsoft destinations might appear helpful, but how are we supposed to write business emails to multiple trustees so they can use Reply To All to share & respond to each others comments

I suggest close this extra thread to avoid splitting the available information and making life even more difficult for us the customers and you at Plusnet that clearly do not have good visibility of this serious problem.

Re: Microsoft email issue

Teece — Mon, 29 Sep 2025 09:45:59 GMT

Has this got worse?

I just had the issue occur sending to two addresses. I then tried to just re-sent to the hotmail address, and it was also returned:

This is an automatically generated Delivery Status Notification.

Delivery to the following recipients failed permanently:

* lxxxxxxxxx5@hotmail.com

Reason: A message that you sent to the following recipient could not be delivered due to a permanent error. ** The remote server ?? responded with: ** lxxxxxxxxxx5@hotmail.com ??:?? This message was created automatically by mail delivery software on the server .

Re: Microsoft email issue

PhilipHeyes — Mon, 29 Sep 2025 09:51:15 GMT

You may wish to focus on this thread ...

https://community.plus.net/t5/Email/From-address-doesn-t-meet-the-authentication-requirements/m-p/2022365#M53506