E-mail sending problem

[UniQSoft]

When I try to send e-mail I receive error message
 

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

Subject 'Test heli'
Server Error: 554
Server Response: 554 5.7.1 <unqsoft@gmx.com>: Relay access denied
Server: 'tommy.heliohost.org'
Windows Live Mail Error ID: 0x800CCC79
Protocol: SMTP
Port: 465
Secure(SSL): Yes

Please help.

May be ypu have to set Up SPF, DKIM, and DMARC records

[KazVee]

This support request is being escalated to our root admins.

[Krydos]

Which domain?

[wolstech]

That error looks more like the FROM address is wrong. If I'm reading that right, Windows mail is trying to send email on behalf of unqsoft@gmx.com using Tommy as the mail server. That will never work simply because Tommy isn't allowed to send mail for the gmx domain. You probably need to change the FROM address to match whatever mailbox you created on Tommy.

I went ahead and set DKIM and SPF up on your main domain since its the only one on your account that's actually hosted here at the moment, but I suspect its the above mail settings issue in your client causing that error.