With several customers we are experiencing a problem when email sent to the same address as From: address through smtp.totisp.net (currently resolving to 118.175.8.10) never makes it to the destination. No errors are reported. One of these customers has both TOT and TT&T ADSL lines; sending through TT&T SMTP works and sending through TOT SMTP does not. We would like to hear from people who experience the same problem.