Resolved WEBMAIL - send works, receiving no

[tokey97]

hi, when i use webmail and send email to my friend, all works. receiving messages does not work why?

when i send email from gmail i have error: 554 5.7.1 <[email protected]l>: Relay access denied

 

[IgorG]

Go to Tools & Settings > Mail Server Setting.
Switch Relaying to Authorization is required: SMTP and click OK.

 

[narayan]

I have made some setting in Mailenable
after that, it's stopped receiving email but sending was working
then I have rebooted the machine then email started receiving but stopped sending
and this process continuous
Plesk installed on windows server
can someone help me with this?