SMTP Relay to Exchange Online Fails for One Sender Address
We have an older Windows Server 2012 machine running the IIS 6 SMTP service as an internal relay for devices that send through our Exchange Online tenant. Most…
Exchange 365
SMTP Relay to Exchange Online Fails for One Sender Address
We have an older Windows Server 2012 machine running the IIS 6 SMTP service as an internal relay for devices that send mail through our Exchange Online tenant.…
Getting SMTP Authentication to Work with Exchange 365
I'm trying to set up SMTP authentication for my Exchange 365 tenant and I've made some changes to my settings. I've disabled the option to turn off SMTP…
Help! Stuck in Authenticator Loop for Exchange 365 Admin
I'm the system admin for my organization's Exchange 365 portal, and I'm having a major issue with the authenticator app. When I try to log in, it asks…
How do I set a shared mailbox to send emails as itself instead of the user?
I've just set up a shared mailbox in Exchange 365 and given users permission to send as, read, and manage it. However, when they send emails from the…