I suddenly can’t send emails today and keep on getting errors as below. But, I have not changed any settings on my eM Client and my server.
There are the Errors shown in the returned email:
host gmail-smtp-in.l.google. com [ip]
SMTP error from remote mail server after RCPT TO:<name@gmail. com>:
550-Please turn on SMTP Authentication in your mail client.
550-webserver [ip]:58452 is not permitted to relay
550 through this server without authentication.
My eM Client Version: 9.2.1222
working on the MAC Apple Silicon version
Does anyone know what to do? Thank you.