Q1) One just notifies that admins and the other is the important one that gets sent to the person who registered and which contains the link needed to complete the process. That is the one that never gets sent.
Please check my answers above:
https://toolset.com/forums/topic/new-post-notification-emails-are-not-functioning/#post-1244429
screenshot:
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In my tests in your website, the email does send to the the person who registered: pat@bongo.cc
If you want to send to admin users, you will need to edit the post form:
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in section "E-mail Notifications", enable option "Send notification to a specific email address", input your admin user's email address.
I have tried it again in your website, it works fine, see screenshot email5.JPG
Q2) Those notifications are being sent between 20 and 60 minutes LATER and the time stamps are then being DECEPTIVELY CHANGED to times which are more than 6 HOURS PRIOR to the actual events.
In my test in your website, after submit the Toolset post form here:
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The email logs are added here immediately
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See screenshot in Q1)
And the email should be able to send to email box immediately, unless there is email server problem in your website.
So I don't see same problems as you mentioned above.
And I have seen another similar email notification report related with HTTP2 protocol, please try these:
Test with firefox browser in your computer, open URL hidden link, press F12 key, switch to network tag, check if you are using http2 protocol to do the request.
See screenshot http1.1.JPG