When I hosted my server at home I tried using my Exchange 2013 server to send e-mail, but that didn’t work, so I used the mail relay of my internet provider, which worked fine…
But now I moved my server to a datacenter, so there is not relay server anymore, I need to relay on my own Exchange 2016 SMTP server… But I’m getting this error: “Connection could not be established with host mail.schattorie.nl [Connection timed out #110]”.
Any ideas?