I was using SME server 5.6 and was able to send mails without any problems. Just upgraded the system to SME 6.0 beta 1 and now all my outgoing mails are staying in the remote queue forever. I use the qmail queue management program and this shows that all my remote mails are in the queue. Even forcing the mail to be resend does not work. Tried 'service smtpfront-qmail staus' and this shows the following message '/service/smtpfront-qmail: up (pid 1622) xxxx seconds, normally down'. Tried rebooting the server, but the mail still sits in the remote queue and does not seem to budge from there. Mail for the local network gets delivered immediately. I'm new to Linux and have managed to get the server working without any problems so far, until the upgrade. Would appreciate any help here.