Hello,
When Icedove tries to access an IMAP folder supporting the QUOTA extension,
an integer overflow can be triggered.
Here's a partial dump of the connection (using tcpflow) with IPs greyed
out. As you can see, the server (apparently courier-imap) reports a
negative quota, which doesn't seem to be prohibited by RFC2087 but is
indeed quite senseless.
0.
The problem is that icedove then reports the quota as 2199018% full :
4294967282 of 195313 KB used, which is 2^32-14 (-14 for an unsigned 32bit
int).
This problem has already happened before but I never tracked down the
problem with tcpflow. I'll test the bug on Thunderbird this evening
assuming I don't receive mails on that address until then, as the quota
would probably be fixed by a change in the inbox.
Regards,
Xr