Thursday
For the last 3 days I have had emails sent from a Telus.net account blocked from going to any Microsoft account - Outlook.com or Hotmail.ca The message is the Telus.net account does not meet security requirements.
Message blocked |
Your message to xxxxxxxxx@hotmail.ca has been blocked. See technical details below for more information. |
The response from the remote server was:
550 5.7.515 Access denied, sending domain TELUS.NET doesn't meet the required authentication level. The sender's domain in the 5322.From address doesn't meet the authentication requirements defined for the sender. To learn how to fix this see: https://go.microsoft.com/fwlink/p/?linkid=2319303 Spf= Pass , Dkim= Fail , DMARC= Pass [PH0P222MB0142.NAMP222.PROD.OUTLOOK.COM 2025-07-11T02:46:02.686Z 08DDBF4C7E03FF6B] [DB9PR06CA0017.eurprd06.prod.outlook.com 2025-07-11T02:46:02.746Z 08DDBF2E3DDD9EF7] [DU2PEPF00028CFC.eurprd03.prod.outlook.com 2025-07-11T02:46:02.745Z 08DDBE6BC5EA76BE]
I was using Outlook(new) to send. It is up to date
The message can be sent to Microsoft email recipients using Outlook (new) and a Google account.
I would like to continue using my Telus.net account, which I have used for many years and has extensive contacts established. Does anyone have a solution to this problem?
.
Thursday
Here is some more information from Microsoft. Sorry, it is above my pay grade to solve, but I do notice from my error message that DKIM did not pass. What Microsoft tells me to do to fix it is not something I no how to do. The Solution is at https://support.microsoft.com/en-us/topic/fix-ndr-error-550-5-7-515-in-outlook-com-34cfe8f8-6fbf-457...
Friday
And further to this, I find it only occurs if I send to more than one email address and use the BCC field. If I send to just one Microsoft account at a time, the email goes through
Friday
"Baixaryoucine: Microsoft is currently not accepting emails from Telus.net addresses. You may need to use a different email provider for now."
Friday
I just sent a message from my @TELUS.net account to my @outlook.com address using Outlook 2021 (Desktop) and it worked. I checked the message headers and saw this "dkim=timeout (key query timeout)"
I then sent a message via Edge browser logged in my @TELUS.net account and sent to my @outlook.com address and that also worked. This time the headers had this "dkim=pass (signature was verified)"
The error you are receiving appears to be related to something in the From address field as displayed in the headers you included:
The sender's domain in the 5322.From address doesn't meet the authentication requirements defined for the sender.
You would need to check the message headers to see if there is something unusual for your outgoing email address that's causing this.
Normally the field would be something like From: "your name" <youraddress@telus.net>
Friday
yesterday
Telus email is hosted by Google.
Have you tried using a web browser to access you Telus account and then do the bulk send there?
yesterday
@RobertJohn wrote: My problem seems to come from me volunteering to send emails to our 45 strata residents using the BCC field to protect their identity. It has worked well for years but just recently has rejected all emails going to a Microsoft-owned account.
What you describe has occurred with all email servers from time to time. I once got through to a Shaw tech and he said my email address was reported as spam. Then since I was not sending from a Shaw account he could not do anything about it.
I also found trying to save time, more than X number of addresses is also blocked. But these things are constantly changing security. Real SPAM is interfering with legitimate group emails. I suspect my Outlook 2019 will soon be unacceptable.
yesterday
yesterday
I had to update my Outlook 2019 to access my @outlook.com email as it doesn't support modern authentication😥