Very strange...it looks like we were exporting an obsolete pop3url header file on the mac which was over-writing the generated

XPIDL version.
1999-08-10 19:55:12 +00:00 · 1999-08-10 19:55:12 +00:00 · 36f4221a37
--- a/mailnews/local/public/MANIFEST
+++ b/mailnews/local/public/MANIFEST
@ -21,6 +21,5 @@
 #[installed by xpidl] nsIPop3Service.h
 #[installed by xpidl] nsIPop3IncomingServer.h

-nsIPop3URL.h
 nsIMailboxUrl.h
 nsIMsgParseMailMsgState.h