Cant send Mail Reason: "Smtp.ConnectAsync timeout" using OnlyOffice Mail Server

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Workspace Community Server
Type of installation of Workspace docker
OS: Debian 10
image

I use only iptables

Hello @Poloxin
I’ve noticed the PM message from you. Please accept our apologies for the length of situation, we’re still working on it. I will contact you immediately when we have something to share.