Mails sent from Murena blocked by Microsoft (MSN, Hotmail)

Using /e/OS Troubleshooting
,
1

Dear all,
Today (Nov. 28) while sending e-mails from Murena to persons with @hotmail.fr and @msn.com addresses we received mailer daemons indicating that part of the murena network is on their block list.
Since hotmail and msn are Microsoft, it does not surprises me that much. But it is very annoying, since we use our murena accounts also to send e-mails to people with such accounts.
What surprises me is that this is not the first time that we send messages to @hotmail or @msn accounts. The rejection happens today for the first time. So it is a recent move from MS.

Does any one have a similar problem ?
Can someone from murena help fixing this ?

Thank you in advance

Here are the error messages :

xxxxx@hotmail.fr: host eur.olc.protection.outlook.com[52.101.73.25] said:
550 5.7.1 Unfortunately, messages from [135.181.139.185] 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
Troubleshooting. [Name=Protocol
Filter Agent][AGT=PFA][MxId=11BA1B18065D0C11]
[AM2PEPF0001C716.eurprd05.prod.outlook.com 2024-11-28T10:20:54.765Z
08DD0D8C07A7E53B] (in reply to MAIL FROM command)

yyyyyy@msn.com: host msn-com.olc.protection.outlook.com[52.101.11.8]
said: 550 5.7.1 Unfortunately, messages from [135.181.139.185] 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
Troubleshooting. [Name=Protocol
Filter Agent][AGT=PFA][MxId=11BA1A6B47590713]
[SN1PEPF0002636B.namprd02.prod.outlook.com 2024-11-28T10:20:55.922Z
08DD0D35A7B68747] (in reply to MAIL FROM command)

Regain your privacy! Adopt /e/OS the unGoogled mobile OS and online servicesphone

1 Like
2

Thanks for reporting this @ltdm have shared with the developers. We have raised an issue for this. Status will be updated on the issue on gitlab.

1 Like
3

Interesting. I doubt its something the team here can do anything about if MS is simply doing it in spite.

4

At times, we have observed MS or Google change their service access rules which impacts our services. This requires our infra teams to approach them with documentation and clarify our services are legitimate and so on. This whole process as you can see takes time. The user emails or access to apps stops during this time period. The team is looking into this issue along similar lines.

5

Thanks for looking into this.

Here’s an earlier one, if that’s of interest:
,[scrubbed]@msn.com>: host
msn-com.olc.protection.outlook.com[52.101.8.45] said: 550 5.7.1
Unfortunately, messages from [135.181.6.248] 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
Troubleshooting. [Name=Protocol
Filter Agent][AGT=PFA][MxId=11BA1B2A28D3B106]
[DS2PEPF00003444.namprd04.prod.outlook.com 2024-11-27T08:04:25.571Z
08DD0D95164EDBB7] (in reply to MAIL FROM command)

In reply to my email
Sent: Wed Nov 27 09:04:xx GMT+01:00 2024

I hadn’t given it much thought the first time with all the infra works going on. Second time, today, it stuck so reported on telegram. Manoj forwarded me here.