Early career Postma started his professional career at
FC Utrecht before moving to
De Graafschap.
Aston Villa Postma was signed by
Aston Villa on 14 May 2002 for 1.5 million pounds, upon
Peter Schmeichel's transfer to
Manchester City. Postma's debut came as a substitute in a 0–1 defeat against
Southampton on 21 October, following the dismissal of
Peter Enckelman. After newly appointed Villa manager
David O'Leary purchased Danish keeper
Thomas Sørensen, Postma became the club's second choice goalkeeper at the club. He made two appearances in the 2003–04 season and three in 2004–05.
Wolves Towards the end of his time at Villa, Postma was linked with transfers to several European clubs before going on loan to
Wolverhampton Wanderers at the start of the 2005–06 season. In January 2006, he signed a contract to remain at Wolves until the end of the season. It was announced on 5 May that year that he would leave Wolves in the summer, and he returned to the
Eredivisie with ADO Den Haag .
Later career In August 2008, Postma rejoined former club
De Graafschap on a six-month contract. ==Personal life==