Hi, after some of the recent updates of the plugin, there’s an error in my admin area: EMAIL DELIVERY ERROR: the plugin WP Mail SMTP v2.1.1 logged this error during the last time it tried to send an email:
Mailer: Ostatní SMTP (Other SMTP)
SMTP Error: data not accepted.
Consider running an email test after fixing it.
SMTP (Office 365 SMTP) however is configured OK. Test mail sends OK, message disappears and re-appears after a few moments.
Any solutions? Thank you!