Changes from original distribution:

   1. Kerberos authentication  - 
		
	Compile -DKERBEROS.                

	Due to historical reasons the ticket must be the first 
	thing sent in the protocol. Clients must do a krb_send_auth() 
	just before sending a username. Any hokey password may be sent.

	This popper listens on "kpop", port 1109. This enables us
	to run both versions of popper on the same server.

   2. Using kerberos as a password server - 

	Compile -DKERBEROS_PASSWD_HACK

	The popper may be compiled to accept a clear text password
	but use the password to get a kerberos ticket. This would be 
	done in cases where you cannot alter the client base but do not
	wish to administor a separate passwd file. 

   3. Supressing Status: lines in message headers:

	Compile -DNOSTATUS

	Our staff was never used to seeing this and there was a big
	ruckus when they appeared.. so I turned them off.

   4. MH compatibility (why you ask?)

	We have been and still are using mh's spop program to plop
	mail into the maildrop. For this reason popper was modified
	to parse their format as well. I hope I didn't break anything.

   5. Other tweaks and fobs

	Many of popper's error messages were improved since the client
	programs happily print whatever popper tells them to. I have tuned
	the syslogging a bit to get a better handle on what is going on.
	The syslog messages are sent to local0, with the following levels:

		debug   - debugging information
		info    - logs connections
		notice  - errors (ie: locked maildrop, broken pipe)
		warning - authentication/authorization errors
		error   - bigger errors (ie: no resources)

	
I'd be happy to hear about any bugs I have introduced. There is no
guarenteed level of support, but I'll try to answer questions and keep
the software up to date.

Tom Coppeto
MIT Network Services
tom@mit.edu

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