hello i am getting this message when i am sending a email and this is happenning sometime.
Status: 5.0.0 (permanent failure)
Diagnostic-Code: smtp; 5.1.0 - Unknown address error 550-'5.7.1 k9KIRRTb005185 This message does not comply with required standards.' (delivery attempts: 0)
Reporting-MTA: dns; smtp02.bis.na.blackberry.com