All email migration traffic to the destination Google Apps mailbox will be 
over port 443 (although it might use port 80 for one or two non-SSL API 
calls, can't say for certain). If your source server (Exchange or IMAP) is 
inside the firewall, that should be all you need, if it's outside you'll 
need to open 143 and/or 993 for IMAP and whatever range of ports 
Outlook/Exchange utilize (to lazy to look it up right now but Google should 
tell you).

Jay

On Monday, October 8, 2012 10:31:10 AM UTC-4, David Spangler wrote:
>
> Hello,
>
> When using the GAMME tool, what are the requirements for opening ports?  I 
> assume that GAMME is typically using 443 (HTTP/SSL) but wanted to confirm.
>
> Thank you
>
> David
>

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