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T-Mobile and Greylisting


I have a client for whom we have installed greylisting via spamd. They are having trouble with T-Mobile. They are running Postfix and it seems to be permanent failing on the 450 temp fail message. Does anyone have the IP(s) of the T-Mobile outgoing server(s)?

I intend to whitelist those IP's but any other ideas will be appreciated.



East Coast Access
Tel: 031-566-8080
Fax: 031-566-8010
Web: http://www.eastcoast.co.za