RoundCube Send but dont receive.

Hello,
I just finished installing my Mail server following this tutorial : hostpresto.com/community/tutorials/how-to-setup-an-email-server-on-centos7/
And installed Roundcube following this tutorial : howtoforge.com/running-roundcube-0.7.1-on-nginx-lemp-on-debian-squeeze-ubuntu-11.10#-installing-roundcube-
So For now, I m able to send email but can't receive, so I need some help please.
I m using Centos 7, for further information just let me know.

 

Does MX record of your domain is pointing to your mail server at all?

 

Yes it's pointing, and I found the probléme.

I don't know how I overwritten the SSL files, so I generated it back and it work.

I have another question if it's possible when I send email I see mayname@mail(dot)domaine(dot)com it's ugly I would like something like mayname@domaine(dot)com.
Thanks

 

Yes, you can.
Edit : /etc/postfix/main.cf

Change myhostname to your actual domain name.