What is the default SMTP certificate used for? I'll answer this latter question in this blog post.

How can I see the current default SMTP certificate? The recommend practice is to leave it like it is. One of the questions that kept coming back was:Дo I press Yes to change the default certificate, when I enabled the certificate for SMTP? I encountered lots of expired certificates. The last couple of weeks I have been working with several Microsoft Exchange Server environments.

Rkast on Field Notes: Meeting the requirements for Interoperability between Microsoft Teams and Microsoft Exchange Server.

Bastiaan Arkesteijn on Field Notes: Meeting the requirements for Interoperability between Microsoft Teams and Microsoft Exchange Server.

Dave Stork on Field notes: Make the actual source client IP visible for a load-balanced SMTP service.

Bastiaan Arkesteijn on Field notes: Make the actual source client IP visible for a load-balanced SMTP service.

Nadeep Printina on Field notes: Make the actual source client IP visible for a load-balanced SMTP service.

Security Officer: Please block the iOS native mail app (for) now!.

Field notes: What is the current default SMTP certificate for your Exchange Server environment?.

Field Notes: Meeting the requirements for Interoperability between Microsoft Teams and Microsoft Exchange Server.

Field Notes: DKIM and missing selector records.

Field notes: Make the actual source client IP visible for a load-balanced SMTP service.

Exchange 2010 self signed certificate