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Failed MAPI connection to Thunderbird
Hello, I've been forced to migrate from a legacy program (Microsoft Essentials Live Mail) which supported MAPI, because it has insufficient security to connect to a gmail… (read more)
Hello, I've been forced to migrate from a legacy program (Microsoft Essentials Live Mail) which supported MAPI, because it has insufficient security to connect to a gmail account. Some time ago I inquired if Thunderbird supported MAPI and was told that it did support simple MAPI, which is all I require for simply sending and receiving emails via a specialty App I created in Visual Basic 6 that runs automatically on a PC running Windows 10.
As stated there has been no issues using Live Mail, until Google changed it's security requirements as of 6/6/22. To access Live Mail via the VB6 MAPI controls, I simply needed to make Live Mail the Default mailer. After installing Thunderbird [91.10.0 (64 bit)], I successfully setup the same Gmail account I was using in Live Mail, and made Thunderbird the default mailer. I tried using the VB6 app, but it declares an error when attempting to send a message. When using Live Mail, the App didn't need to be running, a MAPI-send would automatically launch a abbreviated version of Live Mail that would send the message then automatically terminate. I tried this first with Thunderbird, that gave the first error. I then tried having Thunderbird running, but a MAPI-send still failed.
After reading some of past Thunderbird posts on MAPI issues, I noticed a post that suggested my VB6 32 bit App would not be able to connect with the 64bit version of Thunderbird, that I would need the 32 bit version of Thunderbird.
I would appreciate any thoughts on what may be causing the MAPI connection issue with Thunderbird.
X. P.S. Unfortunately the VB6 App, in it's current form does not post a specific error, which would no doubt be some indecipherable MS message; It just states the operation being performed (Send) where the error occurred.