Version 3.72 conflicts with Post SMTP

Dear @ellmanncreative ,

Thanks for reaching out and reporting an issue.
We will make sure to check it and will let you know, once we have any update about it.

That would be nice, thanks!

This is also affecting my websites and I have had to revert

Same here, failed for SendGrid for me.

Just grab the previous version from here and install it until a fixed version has been released.

Dear @ellmanncreative , @vikingcc and @softwareninjade ,

Thanks for reporting.

This is to inform you, that the issue is fixed now with the latest update.
Please, update the free version to 3.73 and in case you have the pro version into 2.9 and after clearing the cache check again.
Please, keep us informed about the results.

I have just updated (mainly because I wasn’t at work and I blocked auto-update on the plugin in the interim), and from what I can see, the issue seems to be resolved.

Thank you.