I became uncertain exactly which file in the "powermessenger_php7" directory contained the relevant credentials, to check if they were accurate. Could you please advise.
But in the mean time, I decided to run a couple of test sessions using my shopping cart, which ultimately uses the same server and credentials, etc. That is working absolutely fine, so not only is that properly configured, it also survived the transfer from one server to another.
The only thing that occurs to me is that the mailing service I use insists gives to each specific mailing service it is asked to recognize a distinct "app password". Is it at all possible that since the request to it is now coming from the different directory of "powermessenger_php7" rather than "powermessenger" as previously, there are different functions involved that it does not recognize?
I am willing to generate a fresh app word for this update if that might be a possibility, but I still need to know the location of the credentials to insert that fresh app word to test to see if that might work.
But if the shopping cart works, then this should also in principle work, which means it is now a matter of tracking down the specific issue.
Thank you for your kindness,