SMTP VRFY # Server-side 553-Ambiguous; Possibilities are: 553-Joe Smith %LTjoe.smith@example.com%GT 553-Harry Smith %LTharry.smith@example.com%GT 553 Melvin Smith %LTmelvin.smith@example.com%GT # Client-side smtp SMTP ambiguous VRFY smtp://%HOSTIP:%SMTPPORT/%TESTNUMBER --mail-rcpt smith # Verify data after the test has been "shot" EHLO %TESTNUMBER VRFY smith QUIT