Sending from an account hosted in gmail to an MS Outlook Recipient, they don't receive the email

Bug Reports
#1

Description

One of my accounts hosted in gmail does not send to recipients using MSOutlook. Well, it does SEND, but they do not RECEIVE the email.

I can send from the same account on my iphone IOS 18.1.1

To Reproduce…

Use an account hosted in gmail, and send an email to a recipient using MSOutlook. They will not receive the email.

I wonder if it has to do with OAuth?

I’m on Windows 10, 22H2, 1/3/2022, 19045.5371
MailSpring 1.15.1 cb02bf10

#2

Another Mailspring user replied to me saying that Open Tracking may have caused Outlook to consider the email as spam.

I have disable Open Tracking and am testing to see if recipients get my emails. I will response with an update…

#3

I disabled Open Tracking and Link Tracking and Outlook email recipients are now reporting receiving my emails.