No receive email but i can send

[Oliviercreativ]

Hello everyone,
I'm surely not the first to ask this question but it's been days that I seek a solution to my problem.

I can send emails to all email addresses but I can not receive them. I use Roundcube.

In the logs of mail.err I find this error: <code> Jul 7 7:47:57 p.m. pipe panel [17712]: fatal: pipe_command:! Execvp USR_LIB / dovecot / deliver: No such file or directory </ code>

The problem is that I send emails but I have no answer to say that he was dismissed for a domain.

And to my second area (linked to the error above) I have a return mail:

Code:

################################################## ##################
# THIS IS A WARNING ONLY. YOU DO NOT NEED TO RESEND YOUR MESSAGE. #
################################################## ##################

Your Message Delivered couldn't be for more than 4 hour (s).
It will be retried up to it is 5 day (s) old.

For further Top support, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The email system

<Hello@xxxxxx.fr>: temporary failure. Command output: pipe: fatal:
    pipe_command:! execvp USR_LIB / dovecot / deliver: No such file or directory

Final-Recipient: rfc822; hello@xxxxxx.fr
Original-Recipient: rfc822; hello@xxxxx.fr
Action: delayed
Status: 4.3.0
Diagnostic-Code: x-unix; pipe: fatal: pipe_command: execvp
    ! USR_LIB / dovecot / deliver: No such file or directory
Will-Retry-Until: Tue, 12 Jul 2016 0200 2:13:26 p.m. (CEST)

If anyone can m "help, that would be cool!


Thank you !!!