>>Definitely not the firewall. I switched off and still have the problem. I don't think I am hitting any limitation because it doesn't even look as if it is starting to send the email, blat connects to stunnel and then disconnects after 30 secionds with nothing happening in between.
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>Hi Frank:
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>I think you can use Wireshark to analyze the network packets and try to see what is going wrong.
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Thanks for the idea Fernando. Downloading wireshark now.