How to Set Up Your New Domain on Mxsec Servers

By Anders Yuran - 04/10/2026 - 0 comments

How to Set Up Your New Email Domain on Mxsec Server

If you acquire a new domain to use for email services, there are two simple ways to configure it:

Option 1

Mxsec Manages Your DNS Recommended

Simply instruct your domain registrar to point your domain’s nameservers to Mxsec. We take care of all email configurations and server routing from there.

Website Hosting: If you host a website on the same domain elsewhere, provide us with your web host’s IP address, and we will map the web records accordingly.
Ownership & Renewals: You retain full ownership of the domain and remain responsible for domain renewal fees directly with your registrar.

Option 2

You Manage Your Own DNS

Prefer to keep your DNS zone managed through your current registrar or third-party DNS provider?

Please refer to our technical configuration guide:
How to Set Up Your Own Domain on Mxsec Server

Infrastructure Partner Recommendation: Mxsec utilizes Namecheap.com for domain registrations and Cloudflare.com for high-performance DNS and security management.

How to Activate Your New Email Account

Check Your Inbox
Look for an activation email sent to your contact address containing your new email credentials and a temporary password.
Log In to Webmail
Go to webmail.mxsec.org and log in using your new email address and temporary password.
Set a New Password
On your first login, you will be automatically prompted to create a new, secure password.
Start Using Webmail
Once your password is updated, your webmail account is active and ready to use.

Setting Up an Email Client (Outlook, Thunderbird, Mobile, etc.)

If you prefer to use an email application instead of webmail, use the following server configuration settings:

Incoming Mail (IMAP)

Server: mail. + your domain (e.g., mail.pissouri.org)
Port: 143
Security / Encryption: STARTTLS
Username: Your full email address
Password: Your new password

Outgoing Mail (SMTP)

Server: mail. + your domain (e.g., mail.pissouri.org)
Port: 587
Security / Encryption: STARTTLS
Authentication Required: Yes
Username / Password: Full email address & your new password