Postfix Maildir delivery failure due to read-only file system

[Omlette]

Then check your logs for i.o errors on the disks involved and/or filesystem problems. Your entire filesystem has been made readonly and the kernel only does that for severe i/o errors on the device(s) that make it up. To correct it in that case will mean rebooting.

I rebooted the system and have the same problem. I'm still able to write files to the file system.

[hunter86_bg]

Anything in the journal or the logs on the machine that bounces the e-mails ?