Hi, I was just wondering if other has the same issues with IIS SMTP, one day it work, some other day not anymore, I suspect listserv trying to send mail to other ListServ network which these email get stuck and block other mail to be send, I got some feedback from other about that issues and will fix it after but I was just wondering if ISS SMTP is suitable for a lot of mailing or I should go see for other SMTP? Thx. About other SMTP I saw Mailenable as a alternate in other discussion thread but is there other out there that would be good for a lot a traffic.