Did you set correct file owner and permission recursively for folder /var/vmail/vmail1 after uploaded?
For example:
# chown -R vmail:vmail /var/vmail/vmail1
# chmod -R 0700 /var/vmail/vmail1
Did you set correct file owner and permission recursively for folder /var/vmail/vmail1 after uploaded?
For example:
# chown -R vmail:vmail /var/vmail/vmail1
# chmod -R 0700 /var/vmail/vmail1