Hi,

this sound correct, here is my fstab entry:

XXX.XXX.XXX.XXX:/mail-storage    /mnt/mail-storage nfs        defaults,timeo=30                0       0

Here are my options when doing "mount":

rw,relatime,vers=3,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,timeo=30,retrans=2,sec=sys,mountaddr=XXX.XXX.XXX.XXX,mountvers=3,mountport=50141,mountproto=udp,local_lock=none,addr=XXX.XXX.XXX.XXX

How can I do further test?

Thanks in advance

Claudio

On 21 Sep 2020, at 01:48, Claudio Corvino <ccorvino@trustitalia.it> wrote:

problem still occurring, I just noticed that if I do an "ls -l /mnt/mail-storage/<user>/Maildir/cur/" from the Dovecot server I can unblock the mailbox of the user and Thunderbird can receives all the e-mails.

The problem occurs even with the gmail client on the smartphone.

I just tried many things but can't find a solution.

I just reinstalled a new server with mail storage not on NFS and the problem seems to be fixed, but this is not a solution valid for us as we would like to use NFS.

This spends like it may be your system not really mounting (or not fully mounting) the NFS until it is actually accessed directly.