Help with Setup

Digital Ocean blocking port 25 (8)
Package PHP-XSL has no installation candidate (3)
Box mail to inbox - external mail to spam (4)
Move Emails from Godaddy cPanel to MiaB (9)
Can't receive mails ( 2 3 4 ) (62)
Should MiaB be installed from 'root' or non-root user? (6)
TLS/SSL cipher suite to "modern" in 0.40? (2)
Access on (15)
SSL 'Provision' button throws error when no real error exists (3)
External DNS A records how to set (8)
Mail relay instructions not accurate for Ubuntu 18.04 (3)
CollectionsError: No backup chains found (solved) (2)
Autodiscover/Autoconfigure/Letsencrypt for secondary domains with A record outside (11)
MIAB and SSL for website hosted on another server (9)
NS issues after installation (8)
New error: FAILED: systemctl link conf/mailinabox.service (3)
Webmail roundcube does not work on new install [Fixed by hosts file] (8)
Error installing a new machine in 18.04.2 (3)
Installation quits at "Initializing system random number generator..." (13)
Mail-in-a-box in Docker? (6)
Mail-in-a-box setup in Raspberry Pi (10)
How do I preserve original recipient address? (4)
Using MIAB with PHP/PHPBB3 (6)
Using two domains on one server (5)
More than one dmarc entry on my DNS (2)
New .de Domain wont register successfull ( 2 ) (25)
Stuck on DNS MX settings (17)
DNS problem: SERVFAIL looking up CAA (8)
IPv6 necessary? recommended? or don't bother? (19)
Mailinabox service not starting on reboot (3)