Some of our queues going to the internet are unable to maintain a connection to send email. We set up a packet capture on the email server and forced a misbehaving queue to make a connection. We got the following results: Frame 1 Us to them 9777 smtp syn Frame 2 Them to Us smtp 9777 syn, ack Frame 3 Us to them 9777 smtp ack Frame 4 Them to us 3266 auth syn Frame 5 Us to them auth 3266 rst, ack Frame 6 Them to us smtp Response 220 Frame 7 Us to them smtp Command EHLO Frame 8 Them to us smtp 9777 fin, ack Frame 9 Us to them 9777 smtp ack Frame 10 Us to them 9777 smtp fin, ack Frame 11 Them to us smtp 9777 ack Please help us understand why the connection is being dropped. We are especially interested in frames 4 and 5. Additional info is available if necessary. -- RJ Easter