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MDaemon's built-in web server supports the Secure Sockets Layer (SSL) protocol. The SSL protocol, developed by Netscape Communications Corporation, is the standard method for securing server/client web communications. It provides server authentication, data encryption, and optional client authentication for TCP/IP connections. Further, because HTTPS support (i.e. HTTP over SSL) is built into all current major browsers, simply installing a valid digital certificate on your server will activate the connecting client's SSL capabilities.

The options for enabling and configuring WebAdmin to use HTTPS are located on the SSL/HTTPS screen under Setup » Web, Sync, & IM Services » WebAdmin (web configuration)". For your convenience, however, these options are also mirrored under "Security » Security Settings » SSL & TLS » WebAdmin".

For more information on the SSL protocol and Certificates, see: SSL & TLS.

This screen only applies to WebAdmin when using MDaemon's built-in web server. If you configure WebAdmin to use some other web server such as IIS, these options will not be used — SSL/HTTPS support will have to be configured using your the other web server's tools.

Accept the following types of connections

HTTP only

Choose this option if you do not wish to allow any HTTPS connections to WebAdmin. Only HTTP connections will be accepted.


Choose this option if you want to enable SSL support within WebAdmin, but do not wish to force your WebAdmin users to use HTTPS. WebAdmin will listen for connections on the HTTPS port designated below, but it will still respond to normal http connections on the WebAdmin TCP port designated on the Web Server screen of WebAdmin (web configuration).

HTTPS only

Choose this option if you wish to require HTTPS when connecting to WebAdmin. WebAdmin will respond only to HTTPS connections when this option is enabled — it will not respond to HTTP requests.

HTTP redirects to HTTPS

Choose this option if you wish to redirect all HTTP connections to HTTPS on the HTTPS port.

HTTPS port

This is the TCP port that WebAdmin will listen to for SSL connections. The default SSL port is 443. If the default SSL port is used, you will not have to include the port number in WebAdmin's URL when connecting via HTTPS (i.e. "" is equivalent to "").

This is not the same as the WebAdmin port that is designated on the Web Server screen of WebAdmin (web configuration). If you are still allowing HTTP connections to WebAdmin then those connections must use that other port to connect successfully. HTTPS connections must use the HTTPS port.


This box displays your SSL certificates. Single-click a certificate in this list to designate it as the certificate that you wish WebAdmin to use. Double-click a certificate to open it in the Certificate dialog to review its details or edit it.

MDaemon does not support multiple certificates for WebAdmin. All domains must share a single certificate. If you have more than one domain then enter those domain names (and any others that you wish to use to access WebAdmin) into the option called "Alternative host names (separate multiple entries with a comma)" outlined below.


Select a certificate in the list and then click this button to delete it. A confirmation box will open and ask you if you are sure that you want to delete the certificate.

Host name

When creating a certificate, enter the host name to which your users will connect (for example, "").

Organization/company name

Enter the organization or company that "owns" the certificate here.

Alternative host names (separate multiple entries with a comma)

MDaemon does not support multiple certificates — all domains must share a single certificate. If there are alternative host names to which users may be connecting and you want this certificate to apply to those names as well, enter those domain names here separated by commas. Wildcards are permitted, so "*" would apply to all sub domains of (for example, "", "", and so on).

Encryption key length

Choose the desired bit-length of the encryption key for this certificate. The longer the encryption key the more secure the transferred data will be. Note, however, that not all applications support key lengths longer than 512.


Choose the country or region in which your server resides.

Create Certificate

After entering the information into the above controls, click this button to create your certificate.

Restart web server

Click this button to restart the web server. The web server must be started before new certificates will be used.

For more information on SSL and Certificates, see:

For more information on WebAdmin, see: