I have need of help on two issues. First one is easy;

Mersey - how do you say it? Jerry and the Pacemakers pronounced a hard Z sound; so Mer-zee ... is that correct?? A song on an upcoming album uses the word, and I don;t want to sound like an idiot. ;-)

Also - the US Post Office website has a "find the zip - or postal code" feature that I use as an address verification tool. Is there such a thing for UK and Ireland addresses?