How email using OAuth and Exchange Online

Mike Matthews - Omnis omnis at
Mon Jul 11 18:04:38 UTC 2022

I’m in the middle of using oAuth2 for Exchange / O365 / Azure.

Most done, just need to tidy up.

Mike Matthews

Lineal Software Solutions
Commercial House, The Strand<x-apple-data-detectors://1/1> Barnstaple, Devon, EX31 1EU<x-apple-data-detectors://1/1>

omnis at<mailto:mike.matthews at><><>

On 11 Jul 2022, at 18:55, Michael Houlberg <michael at<mailto:michael at>> wrote:


My client who is part of a University, tells me that this fall they are dropping support for the type of email we have been using in favor of Exchange Online and using OAuth to authenticate.  Currently we send lots of emails using SMTPSend.  For another client I have had experience using the oSMTPWorker object.  But I haven’t had to deal with either oAuth or Exchange Online Server.

Does anyone have some pointers on this they can share?

Michael Houlberg
Houlberg Development, LLC
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