my first post so hello everyone :D

I'm investigating Imap Idle + Nokia S60 and have noticed an oddness I hope someone can help with. Monitoring the communication using tcpdump I've found that the imap server (at least, over ssl) sends a packet every 2 minutes which is then replied to by the client. This surprises me as I had expected no communication for up to 29 minutes if there was nothing to report. Further investigation shows that this also happens with the Apple Mail client and that it is definitely a server- triggered communication.

Any ideas why there is this 2min packet exchange?

Thanks,
Robert
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GnuPG public key:
http://www.Far-Blue.co.uk


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