A site is accessible prior to changes in the public DNS:
Having hidden files visible and Notepad as administrator.
(Pressing ‘save’ in Notepad++ opens Notepad in administrator mode)
Replace with applicable details and remove hashes:
# 18.104.22.168 webhostingtech.nl
# 22.214.171.124 webhostingtech.nl/wordpress
# 126.96.36.199 webhostingtech.nl/wordpress/wp-admin
- If you move a website to another IP-address, the setting of the e-mail server may accidentally interfere. Having ‘mail.sitedomain.com’ is important for the e-mail servers in local e-mail clients. This way you keep referring to the IP address of the ‘mail’ subdomain.
- For MX, server1.serverdomain.com and mail.sitedomain.com are common mail server settings. Mail Transfer Agents step over a different domain in the SSL certificate than the one from the server itself, when using ‘mail.sitedomain.com’;
- An IP address can be blocked: Retrieve someones IP address, and clear the firewall;
- Outdated TLS 1.0 can still be needed: A mail server somewhere else or a user pc, can be behind;
- IPv6 is less common for mail, even if a data center can handle it. Starting testing, ‘mail.sitedomain.com’ can be set up in the public DNS only for IPv4;
- Old mailboxes can still have received non-retrieved mail. Forwarding to a private email address is an option;
- For newsletters, the sending server needs autorization setup in SPF settings.