[simfree]

Microsoft has a hidden quarantine. Google has random delivery issues. Neither are truly set it and forget it, at some point your back asking why an email bounced back or disappeared into an undisclosed quarantine with no notification...

[paulcole]

I’ve used Gmail for work for 9 years and Gmail for personal use for 18 years and have never had to ask why an email bounced back or disappeared into an undisclosed quarantine with no notification.