[mailop] R: Contact in Microsoft 365 Defender for Outlook?

2023-10-20 Thread Rodolfo Saccani via mailop
or on urlsand.com is allowed, some third level domains are classified as phishing and there is no way out other than attempting with a different third level domain. I wander what the review process looks like. Rodolfo Da: mailop per conto di Rodolfo Saccani via mailop Data: lunedì, 16 ottobre 2023 alle ore

[mailop] R: Contact in Microsoft 365 Defender for Outlook?

2023-10-16 Thread Rodolfo Saccani via mailop
Did anyone have similar issues? We’re hitting a rubber wall trying to correct Microsoft false positives in URL classification. Any suggestion would be greatly appreciated. Cheers Rodolfo Da: mailop per conto di Rodolfo Saccani via mailop Data: venerdì, 13 ottobre 2023 alle ore 11:15

[mailop] Contact in Microsoft 365 Defender for Outlook?

2023-10-13 Thread Rodolfo Saccani via mailop
We are having issues with emails flagged as phishing by Defender (and not delivered) when the email contains URLs of a URL sandboxing service that performs security checks at click-time. One example of a URL that is currently triggering false positives is

[mailop] R: [E] Yahoo "Message not allowed" error

2023-04-19 Thread Rodolfo Saccani via mailop
As far as I can see, envelope-from domains without a SOA record see their email rejected with 554 over some volume threshold. This seems to be a fairly recent update. This requirement only recently appeared here: https://senders.yahooinc.com/smtp-error-codes/ (you can check the internet archive

[mailop] R: Can't deliver to Microsoft from a subnet

2022-11-14 Thread Rodolfo Saccani via mailop
than silence. So I hope it helps some. On 2022-11-14 03:13, Rodolfo Saccani via mailop wrote: > If anybody from Microsoft con help on this, my gratitude will be huge. > > > Some companies (like Southeastern railways, for example) are currently > unable to deliver their legi