Which key is used when more than one are valid?

1 msg	encryption failed
3 msg	problem using encryption
2 msg	Smart card: pcsctest fails
9 msg	Two questions
2 msg	FireGPG Report
2 msg	errors in manual
2 msg	Re: If the message is encrypted symmetrically
7 msg	If the message is encrypted symmetrically...
16 msg	RSA 4096 ridiculous? (was RSA 1024 ridiculous)
2 msg	Problems generating keys on card '`SCD WRITEKEY...
1 msg	new (2007-06-10) keyanalyze results (+sigcheck)

Which key is used when more than one are valid?
\ Jean-David Beyer (17 Jun 2007)
. \ David Shaw (17 Jun 2007)
. . \ John W. Moore III (17 Jun 2007)
. . . \ Jean-David Beyer (18 Jun 2007)
. . . . \ John Clizbe (18 Jun 2007)

1 msg	Re: New version of mac-gpg2
37 msg	RSA 1024 ridiculous
1 msg	'export-secret-subkeys' between 2 computers
1 msg	Regenerating keys on a cryptocard.
1 msg	Can someone test my encryption subkey ?
6 msg	Revoke and expire
6 msg	PGP software pirated
4 msg	Importing backed up card generated key

Subject:	Which key is used when more than one are valid?
Group:	Gnupg-users
From:	Jean-David Beyer
Date:	17 Jun 2007

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My gnupg file that I get with edit-keys myuid
contains, among other things:

sub 2048g/48FF0850 created: 2007-02-24 expires: 2008-02-24
sub 4096g/124E0663 created: 2007-06-17 expires: 2009-06-16

How do I know which key is used when sending e-mail?
Or is this a Thunderbird question?

- --
.~. Jean-David Beyer Registered Linux User 85642.
/V\ PGP-Key: 9A2FC99A Registered Machine 241939.
/( )\ Shrewsbury, New Jersey http://counter.li.org
^^-^^ 14:45:01 up 5 days, 19:45, 5 users, load average: 4.13, 4.21, 4.30
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