Postbank draws domestic, foreign interest -sources

FRANKFURT, June 6 (Reuters) - Deutsche Post (DPWGn.DE) has received expressions of interest for Deutsche Postbank (DPBGn.DE) that are clearly above 10 billion euros ($15.61 billion) and a sale could go quickly, sources familiar with the matter told Reuters on Friday.

Though a formal decision to sell Germany's biggest retail bank has not yet been taken and depends on the offers received, a sale is increasingly likely and could take place within weeks once due diligence starts, the sources said.

Commerzbank (CBKG.DE) and Allianz (ALVG.DE) are making a joint approach, but foreign financial players are also interested, the sources said. (Reporting by Philipp Halstrick and Matthias Inverardi)