[Evolution] Evolution's slightly excessive pipe usage; also, "Send Later"

[David Luyer <david luyer net>]

1.  Evolution keeps on running out of file descriptors at a 1024-FD
limit because of this:

pipe([983, 984])                        = 0
pipe([985, 986])                        = 0
pipe([987, 988])                        = 0
pipe([989, 990])                        = 0
pipe([991, 992])                        = 0
pipe([993, 994])                        = 0
pipe([995, 996])                        = 0
pipe([997, 998])                        = 0
pipe([999, 1000])                       = 0
pipe([1001, 1002])                      = 0
pipe([1003, 1004])                      = 0
pipe([1005, 1006])                      = 0
pipe([1007, 1008])                      = 0
pipe([1009, 1010])                      = 0
pipe([1011, 1012])                      = 0
pipe([1013, 1014])                      = 0
pipe([1015, 1016])                      = 0
pipe([1017, 1018])                      = 0
pipe([1019, 1020])                      = 0
pipe([1021, 1022])                      = 0
pipe(0x82005a8)                         = -1 EMFILE (Too many open files)
pipe(0x82006b8)                         = -1 EMFILE (Too many open files)
pipe(0x82007c8)                         = -1 EMFILE (Too many open files)
pipe(0x82008d8)                         = -1 EMFILE (Too many open files)
pipe(0x82009e8)                         = -1 EMFILE (Too many open files)
pipe(0x8200af8)                         = -1 EMFILE (Too many open files)
pipe(0x8200c08)                         = -1 EMFILE (Too many open files)
pipe(0x8200d18)                         = -1 EMFILE (Too many open files)
pipe(0x8200e28)                         = -1 EMFILE (Too many open files)
pipe(0x8200f38)                         = -1 EMFILE (Too many open files)
[...]

most of these pipes appear to never be used.

The thread doing this is a thread created by a thread created by
the evolution-mail process.  If it's relevant, I have about 47
IMAP folders .  I also have a 'strace -f -o xxx' of evolution
doing this if it's helpful, but will only send selected parts
as I know my password is passed to the IMAP server in there somewhere :-))

One of the other treads also got up to 738 FD's used in pipes.

The version of evolution I'm using is Debian's evolution-ssl 0.15-3
(ie, pretty much standard 0.15/beta5).

2.  I just sent a blank message because I selected "Send Later" instead of
    "Save Draft".  Is there a nice way to view/delete "Send Later" messages,
    when I "Send/Receive" it is far too fast to click cancel.

David.
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