Problem with Gmail/Evolution and IPFW

[RW]

On Fri, 27 Mar 2009 22:01:51 +0100
Roy Stuivenberg <roys1012 at gmail.com> wrote:

> Hello, 
> 
> I'm having a problem with Gmail and IPFW. 
> Gmail is configured in Evolution.
> <running prerelease 7.2 / stable + Gnome2>
> 
> When I can't send mail (with attachment), I 
> have to disable IPFW, and at that point I'm able to send mail.

This sounds like it could be a path mtu discovery problem; try adding
the following: 

allow icmp from any to any icmptypes 3