Hi
Hmm may be you haven't enough rights to read/write PM?
Check it in admin panel->privacy&permission->user roles

Users are allow to read and write PM. The script don't display a message like 'error 'or 'success', nothing.

(sorry for my english i'm french)

thanks

Did u receive email notifications when try to send PMs?

No.

Not email notifications.
Not notifications.
Not messages like 'error' or 'succes'.
Not messages in my MySQL database.

Would you PM your site's URL and admin login?

sent :)

Just thinking... Could it be cron related? Are you seeing member online/offline activity? Anyways, Oxwall will find your problem.

I think this not a cron problem. Normaly you can send message without cron.

@Thomas
Would you update mailbox plugin from admin panel?

I have the last version.

I fix this problem. If someone want know you must just uninstall mailbox and reinstall it.

@Thomas
Are you sure that your autoupdate notifications working well? Would you check that you have setup CronJob correctly.
When you uninstalled plugin, downloaded it from store and installed again, you did the same as script do when autoupdate the plugin :)

I'll watch. Thank you for your patience