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# MDaemon Email Server 26.0

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MDaemon system account mailbox alias [address]

This is the email address from which system generated messages will come. Subscription confirmations, delivery status notification (DSN) messages, various other notification messages, and the like are all system messages.

Default attachment extension

System generated messages will be created using this extension. This will also be the extension assigned to attachments included with system generated messages. For example, if MDaemon generates a warning message to the postmaster about a specific message it will attach that message with this value as the file extension.

Default logon delimiter character (10 characters max)

When using an email address as the account logon parameter, this character or string of characters can be used as an alternative to "@". This may be necessary for some users that have email clients which do not support "@" in the logon field. For example, if you used "$" in this field then users could login using "user1@example.com" or "user1$example.com".

Servers require full email address for authentication

MDaemon's POP and IMAP servers require you to use your full email address by default when logging in to MDaemon. If you wish to allow mailbox only logins (e.g. "user1" instead of "user1@example.com") then you can disable this option, but it is not recommended as mailbox only logins are ambiguous when MDaemon is serving multiple domains.

Default spam folder name

Use this text box to specify the default name for the Spam folder that MDaemon can create automatically for your users. The default name is "Junk E-mail" to match the default value of various other widely distributed products.

Char-set value for auto-generated messages

Specify the character set that you wish to be used for auto-generated messages. The default setting is iso-8859-1.

New account "welcome message" subject text:

MDaemon typically sends a "welcome message" to new accounts. The text specified here will appear as the message's "Subject" header. The welcome message is constructed from the NEWUSERHELP.DAT file contained in the …\MDaemon\app\ folder, and this subject header may contain any macros permitted in auto response scripts.

Run daily maintenance and cleanup at [1-12] [am/pm]

Use this option to set the hour at which the daily maintenance and cleanup event takes place. The default and recommended setting is 12am.

| Regardless of the hour you set for this option, there are some daily events that will always happen at midnight, such as log file maintenance and running midnight.bat.

Move account mail folders when domain or mailbox values change

If this checkbox is enabled, when you change a domain name or mailbox the mail folders for the affected accounts will be moved to the new location. Otherwise, MDaemon will continue to use the old mail folder names.

Hash message directories

Click this check box if you wish to enable directory hashing — MDaemon will hash certain directories by making up to 65 sub-directories. Hashing can increase performance for certain hi-volume sites but may degrade performance slightly for typical MDaemon sites. This option is disabled by default.

MDaemon v26.0.1 - April 2026. Copyright © 1996-2026. All rights reserved. MDaemon Technologies