I have posted to a dozen email addresses that are all authentic and all are undeliverable.
Yes I use a POP3 account and my SMTP server settings is unchecked.
If I check it, the test email settings shows that there is something wrong.
All of a sudden in the last 3 days or so I am unable to send any emails. However I am able to receive emails with no problems.
The message I get on sending emails is as follows:
Your message did not reach some or all of the intended recipients.
Sent: 08/05/2021 21:02