bp7264

Registered
Nov 1, 2021
2
0
1
Tampa
cPanel Access Level
Root Administrator
Hello

I use a 3rd party application (Gammadyne) to send bulk email to our customers. I am not asking for help with Gammadyne. When I attempt to send email, I am getting this error message. I have not seen this before. SMTP is turned on in cPanel and am using user Login credentials in Gammadyne for sending emails.

>SMTP Error 4590:
Server refused recipient [email protected]:
550-Please turn on SMTP Authentication in your mail client.
550-static-47-206-223-127.tamp.fl.frontiernet.net (33helpme.com)
550-[47.206.223.127]:11430 is not permitted to relay through this server
550 without authentication.

Thank you