relocatable smtp server?

[countach44]

Anyone know of an smtp server that will relocate easily (a la apache with ./configure --prefix)?
I've looked at qmail, postfix, smtp no-relay, and sendmail and all of them want to be installed into / with various droppings.

I'm looking for a solution to deliver local mail and one that could potentially move from one server to another without much effort (rsync a directory)

[countach44]

I ended up going with postfix and a rather large "make" command line to setup all the different paths by changing all the "DEF_" parameters and prepending my prefix.
Here are the parameters, as listed in the man page:

DEF_COMMAND_DIR command_directory /usr/sbin   
DEF_CONFIG_DIR config_directory /etc/postfix  
DEF_DAEMON_DIR daemon_directory /usr/libexec/postfix  
DEF_DATA_DIR data_directory /var/lib/postfix    
DEF_MAILQ_PATH mailq_path /usr/bin/mailq    
DEF_HTML_DIR html_directory no    
DEF_MANPAGE_DIR manpage_directory /usr/local/man   
DEF_NEWALIAS_PATH newaliases_path /usr/bin/newaliases    
DEF_QUEUE_DIR queue_directory /var/spool/postfix    
DEF_README_DIR readme_directory no    
DEF_SENDMAIL_PATH sendmail_path /usr/sbin/sendmail