RE: Hard Bounces, Soft Bounces - how are they tracked?
Hi Carolin,
You can find further information on the following link: docs.microsoft.com/.../insights
The below is regarding the tracking:
Bounced (hard)
Messages that resulted in a hard bounce, which indicates that the address is invalid. A hard bounce might occur because the domain name doesn't exist or because the recipient is unknown. Multiple hard bounces can lower your server's send reputation, which will reduce your delivery rate, so you should remove hard-bouncing addresses from your contact records. When an address returns a hard bounce, Dynamics 365 will automatically stop sending new messages to that address for six months, but your email results will still show each attempt as a hard bounce.
Bounced (other)
Messages that bounced for some reason other than a hard or soft bounce. This result is rare, and might indicated a remote bounce, which occurs when a server initially accepting a message, but then returns a bounce message sometime later. These are otherwise treated as soft bounces.
Bounced (soft)
Messages that resulted in a soft bounce. A soft bounce occurs when an email is sent to a valid server, which recognizes the user, but still rejects the message for some reason, such as because the recipient's mailbox is full, the mail server is temporarily unavailable, or the recipient no longer has an email account at that address. If five messages in a row sent to a given address result in a soft bounce, then that address is treated as a hard-bounce address.
I hope this helps.
Megan