(a) A presenting bank makes the warranties required of a sender under subpart A of regulation J (12 CFR part 210). This paragraph does not limit any warranty by a presenter or other party arising under State law.

(b) We are not barred from recovering on a breach of warranty solely because:

(1) Our negligence contributed to a fraudulent endorsement or material alteration;

(2) We did not promptly discover an unauthorized signature or alteration;

(3) An impostor fraudulently caused the issuance of a fiscal agency check in the name of any existing payee; or

(4) Our employee fraudulently caused the issuance of a fiscal agency check in the name of any existing payee.