Hy, i have a "compute engine" hosted by google. When i try to send an email via postfix, it doesn't work.
Error log says:
postfix/smtp: 16C5820035: to=< firstname.lastname@example.org>, relay=none, delay=60, delays=0.15/0.02/60/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[2404:6800:4003:c01::1b]:25: Network is unreachable)
When i try to ping the hostname or it's ip adress, it works fine. Is this some kind of misconfiguration?