From: [conf->email]@[conf->host]
Subject: near expiration of your certificate

Your authentification certificate will expire on [expiration_date].
The certificate subject is :
[certificate_id]

You won't receive the signed messages from your lists.
To receive them again, renew your certificate with your certification authority
and send a signed message to [conf->email]@[conf->host]
or
click : mailto:[conf->email]@[conf->host]?subject=WHICH
