Postfix is not sending mails out

#1
I installed openlitespeed.
Loading LiteSpeed/1.6.6 Open
module versions:
modgzip 1.1
cache 1.62
modinspector 1.1
uploadprogress LSIAPI_VERSION_STRING
mod_security 1.2
(built: Wed Jan 22 22:14:41 UTC 2020) ...

and i see that postfix is not sending mail out due it can not connect to the outside it seems?

log:
connect to mail.xxxxx.nl[111.111.111.111]:25: Connection timed out)

i anonymized the domain name and ip

weird part is i can ping to this domain and/or ip

i installed another GKE image and there i have the same problem
 
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