Depending on the action requested, ECHOBASE will read the message, add the echo to (or update, delete) the echolist database, add a rule file, send a netmail response, announce the echo and forward a submission to the EList.

Moderator Delete Messages

To: echolist@fidonet.us
Subject: MOD DEL
Body of Message
From: your_email_address
TAGname areatag
PASSword current password, new password
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Terminating the message

So that Echobase will know when to stop reading the message for keywords, you need to include a line beginning with three-dashes to indicate the end of a message.
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Here's a final, full example.
This message updates the echo HIJACKME

To: echolist@fidonet.us
Subj: MOD DEL
From: baltimoremd@baltimoremd.com
TAGname HIJACKME
PASSword iwillnottell
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