Suppress "No mail" message after SSH Login

Changes in file /etc/pam.d/sshd:

#!/bin/sh
...
# Print the status of the user's mailbox upon successful login.
#>>>2020-06-14 Frank Wulf
# Suppress "no mail" message after login
#session    optional     pam_mail.so standard noenv # [1]
session    optional     pam_mail.so quiet noenv # [1]
#<<<2020-06-14 Frank Wulf
...