Can't send email through Roundcube webmail

[Iron_Butterfly]

Hi,

Could you please clarify why I can receive email from address but I can't send reply or just regular email?

How can I troubleshoot it?

 

[fidividi]

You could check to see whether /var/log/exim_mainlog reports anything. Is it only RoundCube for sure? i.e. other webmail apps send ok?

 

[Iron_Butterfly]

You could check to see whether /var/log/exim_mainlog reports anything. Is it only RoundCube for sure? i.e. other webmail apps send ok?

Thank you! I have not checked this issue with other webmails.
In the mentioned log I see:

2016-11-01 16:47:18 1c1Ux5-0000CH-TY H=imx6.example.ru [195.19.xx.xx] Connection refused
2016-11-01 16:47:18 1c1Ux5-0000CH-TY H=imx7.example.ru [195.19.xx.xx] Connection refused
2016-11-01 16:47:18 1c1Ux5-0000CH-TY == [email protected] R=dkim_lookuphost T=dkim_remote_smtp defer (111): Connection refused
2016-11-01 16:47:34 1c1KFb-00057U-8z Message is frozen

Is it DKIM related problem? In this case what's wrong with DKIM here?

 

[ruzbehraja]

Could be lot of things related to DKIM or SPF or a blacklisting.

It could be rDNS / SPF / DKIM etc,

use tools like www.mail-tester.com to troubleshoot.

 

[cPanelMichael]

Hello,

You may also find this document helpful:

How to Keep your Email out of the Spam Folder - cPanel Knowledge Base - cPanel Documentation

Check to ensure all your server follows the recommendations from that document.

Thanks!