[MSDN Library June 1998] SMTP: Err Msg: 500 Huh? (53.4523809523809%)
MSDN Library Visual Studio 6.0 > Knowledge Base > Mail For PC Networks
[MSDN Library June 1998] SMTP: Err Msg: Error (44.7567287784679%)
MSDN Library Visual Studio 6.0 > Knowledge Base > Mail For PC Networks
[MSDN Library June 1998] SMTP: Err Msg (42.5828157349896%)
MSDN Library Visual Studio 6.0 > Knowledge Base > Mail For PC Networks
[MSDN Library June 1998] SMTP: Err Msg: Recipient Unknown (40.952380952381%)
MSDN Library Visual Studio 6.0 > Knowledge Base > Mail For PC Networks
[MSDN Library June 1998] SMTP: Err Msg: 550 Addressee Unknown (40.952380952381%)
MSDN Library Visual Studio 6.0 > Knowledge Base > Mail For PC Networks