MHA Fails with Secondary mailboxes

[jdduff99]

We have many users who access their primary mailbox in Outlook but also use Shared mailboxes. We use the latest version of MHA add-in (v3.1). The add-in works perfectly for messages sent to the primary mailbox but it fails when looking at message headers sent to those shared mailboxes. It simply displays summary diagnostics as shown below.

The users have disabled/re-enabled the add-in to no avail. I also tried disabling all other add-ins in Outlook but that made no difference. Any hints for us? This has stumped me so far.

Thank you!

[stephenegriffin]

I repro this with C2R as well (16.0.9020.1000).

[stephenegriffin]

I suppose this is a tiny improvement:

It looks like the shared mailbox is confounding the EWS request I'm making, but I don't see where I have control over the store ID. Further investigation required

[stephenegriffin]

Ok - just got confirmation that add-ins aren't supported on shared mailboxes - MHA shouldn't have lit up in the first place, but that's not MHA's fault - that's Outlook's fault. I'll have to see if I can detect this up front and display an appropriate "this is not the MHA you're looking for" message.

[jdduff99]

I really appreciate your quick investigation! I should point out that MHA does work with most Shared mailboxes for our clients. It is only the odd one that it fails for. It looks like the code is working correctly in 75% of the shared mailbox cases, I can't figure out why it fails for the rest!

[stephenegriffin]

From the Outlook desktop side, there are two ways to add a shared mailbox - one way adds the mailbox to your profile, the other adds it as a folder within your mailbox which is kept synced with the shared mailbox. I wonder if Outlook for iOS has something similar?

[jpickerell]

So is there there no way for the MHA add-in to support emails in additional IMAP accounts that have been added to the Outlook desktop client?

Wunderlist add-on is lit up, but MHA is not for emails in these accounts.

Otherwise, love how easy this add-in is to use! Appreciate the authors' work and publishing it freely!