Hm as you mention it i am connected through a VPN so there has to be something else. Have to check that again.


Am 13. Februar 2018 01:03:39 schrieb Wietse Venema <>:

TG Servers:

how can I best test postfix delivery from a local VM if port 25 is
blocked by ISP.
My only intention is to setup another VM and make a network between them
and then send mails between them.

Use a VPN?


Or is there any other solution how I could get postfix from a VM to the


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