Outlook flag Follow up reminder

Question

User-1789315486 posted

The below code is not showing reminder pop up, it is showing only follow up date on email header.

Can any one please help me that how to show follow up flag reminder using Mail Message headers ?

message.Headers.Add("X-Message-Flag", "Follow up");
message.Headers.Add("Reply-By", String.Format("{0:ddd, dd MMM yyyy HH:mm:ss zz}", ReplyDate));

If i use Microsoft.Office.Interop.Outlook i think outlook should installed in machine, but my production server is not having outlook.

And also i don't want to create appointment/ send meeting invite, i should send normal email with follow up flag and reminder enabled.

Answer 1

User475983607 posted

Office interop is not recommended for use on a web server.  You'll need to come up with a different design.

Answer 2

User753101303 posted

Hi,

Maybe it doesn't expect the "Follow up" text value ?  I tried to find a specification to make sure which values are accepted. I gave a quick look at https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/ms-oxprotlp/30c90a39-9adf-472b-8b5b-03c282304a83 but found nothing for now.

Wonder if it could be a numerical value as shown at https://docs.microsoft.com/en-us/previous-versions/windows/desktop/oe/oe-message-state-flags My next option would be to use https://support.office.com/en-us/article/View-internet-message-headers-cd039382-dc6e-4264-ac74-c048563d212c to try if I can see the header for a message marked this way.