Minger Email Address Verification Protocol is an Internet Engineering Task Force draft for lightweight verification of an e-mail address between trusted servers. It was created by Arvel Hathcock and Jonathan Merkel as a practical alternative to the Finger protocol or SMTP call-forward.IETF Minger draft The MDaemon e-mail server uses Minger to realize domain sharing over multiple servers with distributed mailboxes.MDaemon Manual: Minger
IANA has reserved and assigned TCP and UDP port 4069 to Minger protocol.IANA - Service Name and Transport Protocol Port Number Registry
On February 3, 2010, draft 6 expired. On March 9, 2016, draft 7 was released, but it is available only within MDaemon's documentation.
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