ImapMailbox( mailbox, CacheManager&, ParserPool& );

ParserPool.getParser( const server, const mailbox );

Cache->forget( const server, const mailbox );
Cache->setState( const server, const mailbox, uidvalidity, uidnext );
Cache->uidToSeq( const server, const mailbox, uid );
Cache->seqToUid( const server, const mailbox, seq );
