Mike Matthews - Omnis omnis at
Mon Aug 22 09:23:59 UTC 2022

Hello Martin,

You can lower the security on the account, but Microsoft will occasionally reverse that choice.  Hmmm..

Yes, you will need to use the oAuth2 worker as well when using SMTP or the IMAP workers.  I found a few issues when subclassing the oAuth2 worker, these are fixed using the very latest version of Studio, or newer maybe.

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 22 Aug 2022, at 10:09, Martin Obongita via omnisdev-en <omnisdev-en at<mailto:omnisdev-en at>> wrote:

Hi Phillip,
Yes. office365.
Is OAUTH2 in the sample libraries?

   On Monday, August 22, 2022 at 12:02:40 PM GMT+3, Philip Tulett <philip.tulett at<mailto:philip.tulett at>> wrote:

Hi Martin,

Is that an Outlook365 account ?
If so, it maybe that Basic Authentication is not enabled/has been disabled
on that account.
In which case, it either needs to be enabled, or you need to switch to use
Modern Authentication/OAUTH2.

Kind regards
Philip Tulett

-----Original Message-----
From: omnisdev-en <omnisdev-en-bounces at<mailto:omnisdev-en-bounces at>> On Behalf Of
Martin Obongita via omnisdev-en
Sent: 22 August 2022 09:48
To: omnisdev-en at<mailto:omnisdev-en at>
Cc: Martin Obongita <martin.obongita at<mailto:martin.obongita at>>
Subject: SMPT Send

Hi All,
I'm using the smtp worker object to send emails through an outlook account.
I keep getting the error message Authentication unsuccessful.
SmtpClientAuthentication is denied.I have the password and the correct port
number for the account.
How do I resolve this error?
Kind regards,Martin O.
Manage your list subscriptions at Start a new
message -> mailto:omnisdev-en at

Manage your list subscriptions at
Start a new message -> mailto:omnisdev-en at

More information about the omnisdev-en mailing list