Download MDaemon Messaging Server 15.0 - User Manual

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(the default is 4069), and choose whether to require authentication via a shared secret
system or to allow anonymous queries.
MDaemon also has a Minger client, which is built in to the Domain Gateways system
(see Verification 170 ). Each domain for which MDaemon is acting as a gateway or
backup server can be configured to use Minger so that MDaemon will connect to the
remote server and verify whether or not the recipients of incoming messages for that
domain are valid. This prevents you from having to assume that all recipients are valid
addresses.
You can find the latest draft of the Minger protocol at:
http://tools.ietf.org/html/draft-hathcock-minger-06
Minger Server
Enable Minger server
Click this checkbox to enable MDaemon's Minger server.
Listen for Minger connections on this UDP port
This is the port on which the Minger server will listen for connections. The Internet
Assigned Numbers Authority (IANA) has reserved and assigned TCP and UDP port
4069 for use with Minger clients and servers. Changing this port is not recommended
as it has been reserved exclusively for Minger use.
Minger queries require a shared secret
If you wish to require authentication via a shared secret system, choose this option
and enter a text string of at least 16 characters. When this option is chosen the
Minger server will refuse unauthenticated queries.
Minger server supports anonymous queries
Choose this option if you wish to support anonymous Minger queries—the connecting
client isn't required to authenticate itself before making address verification queries.
This is similar to what can be accomplished now by sources using the SMTP VRFY
command or SMTP "call back" or "call forward", but it is much more efficient and
doesn't result in lots of dropped SMTP sessions over TCP, SMTP logs cluttered with
dropped sessions, and similar problems inherent in those methods.
Minger treats foreign aliases as active email addresses
When this box is checked, Minger will treat foreign aliases (aliases that point to
external addresses) as if they were active known addresses. Also, this behavior is
forced when a query comes from SecurityGateway to MDaemon regardless of the
state of this option's setting.
Cache Minger lookup results
By default MDaemon will cache Minger lookup results. If you do not wish to cache
them, disable this option.
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