Outgoing Email Problem 554 Error

[virgils]

Hi All,

I am new here and i start this discussion because after i made some research i have not find a solution.

I have a VPS Cloud with ubuntu and last version of Plesk.

I think is configured correctly but in the same time i have problem with the outgoing mail when i try to send a email via windows live mail.

The message could not be sent. The setting for your outgoing email [SMTP] server might need to be configured. To find the server settings for '[email protected]', please contact your email service provider.

Subject 'Re: teststs'
Server Error: 554
Server Response: 554 5.7.1 <unknown[188.26.241.0]>: Client host rejected: Access denied
Server: 'servername.com'
Windows Live Mail Error ID: 0x800CCC79
Protocol: SMTP
Port: 587
Secure(SSL): Yes

After this, using this tool: mxtoolbox.com i have this error
SMTP Banner Check Reverse DNS does not match SMTP Banner which i don't know if is the problem for my email issue.

Any help will be appreciate.

Thank you.

 

[abdi]

Hi,

Are you providing SMTP authentication from your email client?

 

[virgils]

Yes, i try with the port 25 and 587 but nothing, just the incoming is working.