You can use {|} structure to spin messages.

You can do something simple:

New {post|article|blogpost} (%TITLE%) has been published

You can include template tags inside {}

{Look at my new post - %TITLE%|I just blogged at %SITENAME% - %TITLE%}

You can even do some complicated things and nest spinning structures.

{New {post|article|blogpost} (%TITLE%) has been published on %SITENAME%|Look at my new {post|article|blogpost} - %TITLE%|I just blogged at %SITENAME% - %TITLE%}