535 Incorrect Authentication Data

AnT0039

Registered
Jul 15, 2016
1
0
1
Italy
cPanel Access Level
Reseller Owner
SMTP -> ERROR: Password not accepted from server: 535 Incorrect authentication data
SMTP Error: Could not authenticate. Mailer Error: SMTP Error: Could not authenticate.


i dont have no firewall.
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,909
2,228
463
Hello,

Have you tried logging in via Webmail to verify your email account username and password are valid? Do you have root access to this system? Please ensure you follow the guidelines from Guide To Opening An Effective Forums Thread.

Thank you.