Outlook 2016 - “Run-time error '287': Application-defined or object-defined error” while using CurrentItem.Saveas or CurrentItem.HTMLBody

Question

We have an Access Database running for quite a few years under \"Office 2010\" but now we have to change to Office 365 and are getting this annoying error with the code below:

Answer 1

1. Make sure the path string is correct.
2. Try to specify another type to save with - OlSaveAsType.
3. It may be a security issue when automating Outlook from an external application. See "A program is trying to send an e-mail message on your behalf" warning in Outlook for more information.

Answer 2

As @mariodcm says, the problem is related to Security Policies. He pointed me to the solution. To make long history short:

Found out that it was blocked by the following policy: HKEY_CURRENT_USER\Software\Policies\Microsoft\office\16.0\outlook\security\promptoomsend

The key was set to 0 = Automatically Deny. Changing the key to 2 = Automatically Approve solved the problem.

More information: https://answers.microsoft.com/en-us/msoffice/forum/all/office-365-proplus-word-vba-sending-or-saving-mail/5654cfb4-9671-4900-aec4-93ee06e62c40

Answer 3

Problem solved.

It was all about Security Policies for Outlook 2016.

Now the code runs like it ever did.

Thanks anyway.