Officers are re-appealing for help to find 48-year-old Richard Frost from Great Blakenham.
Mr Frost was last seen on Sunday, May 26 at around 5pm.
His family and friends have been searching for him ever since; putting up posters in nearby villages in the hope of finding him.
He is described as white, of a slim build with short, fair hair.
Mr Frost is known to drive a silver VW Golf with the registration KV08 LTK.
Officers have asked that those with access to out-buildings check the premises in case Mr Frost is sleeping rough.
A spokesman for Suffolk police said: "Enquiries are on-going to attempt to locate Richard. Anyone who believes they have seen Richard, or a male matching the description given or who has any information about his possible whereabouts, is asked to contact the duty sergeant at Landmark House in Ipswich on 101."
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