Re: [mailop] Microsoft 365 Mail Blocking

2022-09-01 Thread Christopher Hawker via mailop
, 2022 7:13 PM To: Christopher Hawker Cc: Christopher Hawker via mailop Subject: Re: [mailop] Microsoft 365 Mail Blocking Hello, We've been seeing the same errir for several weeks now too for information Thanks, Agathe Le jeu. 1 sept. 2022 à 10:59, Christopher Hawker via m

Re: [mailop] Microsoft 365 Mail Blocking

2022-09-01 Thread Agathe Allard via mailop
Hello, We've been seeing the same errir for several weeks now too for information Thanks, Agathe Le jeu. 1 sept. 2022 à 10:59, Christopher Hawker via mailop < mailop@mailop.org> a écrit : > Hello All, > > I am currently receiving the below error when attempting to send e-mails > to M365 e-m

[mailop] Microsoft 365 Mail Blocking

2022-09-01 Thread Christopher Hawker via mailop
Hello All, I am currently receiving the below error when attempting to send e-mails to M365 e-mail addresses using an Exchange connector as a relay within a tenancy: 550 5.7.708 Service unavailable. Access denied, traffic not accepted from this IP. For more information please go to http://go.m