Open link2xt opened 4 months ago
An online test which tries to connect to port 25 of some mail server from the chatmail server maybe?
A test getting nine.testrun.org banner would be fine I guess, or some other server like fastmail.
But in any case readme needs a step together with getting DNS name and hosting.
There is a thread about it on the forum: https://support.delta.chat/t/secure-join-between-accounts-on-separate-chatmail-servers/2932
Hetzner has FAQ entry: https://docs.hetzner.com/cloud/servers/faq/#why-can-i-not-send-any-mails-from-my-server
DigitalOcean documentation: https://docs.digitalocean.com/support/why-is-smtp-blocked/