Round e-mail sending not working

[paisley]

When i try to send an e-mail via Roundcube i get the follow error:
SMTP Error (550): Connection to server failed.

I have tried te re-install Exim,Dovecot,Roundcube but that did not work, also tried a downgrade.
Anyone know where i need to look ?

 

[zEitEr]

Hello,

Did you try to change smtp_server in roundcube's settings?

Probably you should check /var/log/exim/mainlog and/or /var/log/exim/rejectlog
And enable logging and debugging in Roundcube and check its logs.