The certificate for secure mail on mercury was about to expire. I added a new one good until 2017.
If you don't know what this means, you probably don't need to worry about it. :)
subject= /C=US/ST=GA/L=Atlanta/O=Sabren Enterprises Inc/CN=mercury.sabren.com notBefore=Mar 1 00:42:21 2007 GMT notAfter=Feb 26 00:42:21 2017 GMT MD5 Fingerprint=30:91:77:E0:B9:17:14:92:B2:3F:2B:C1:E0:8D:E7:7F -----BEGIN CERTIFICATE----- MIICXzCCAcigAwIBAgIBADANBgkqhkiG9w0BAQQFADBqMQswCQYDVQQGEwJVUzEL MAkGA1UECBMCR0ExEDAOBgNVBAcTB0F0bGFudGExHzAdBgNVBAoTFlNhYnJlbiBF bnRlcnByaXNlcyBJbmMxGzAZBgNVBAMTEm1lcmN1cnkuc2FicmVuLmNvbTAeFw0w NzAzMDEwMDQyMjFaFw0xNzAyMjYwMDQyMjFaMGoxCzAJBgNVBAYTAlVTMQswCQYD VQQIEwJHQTEQMA4GA1UEBxMHQXRsYW50YTEfMB0GA1UEChMWU2FicmVuIEVudGVy cHJpc2VzIEluYzEbMBkGA1UEAxMSbWVyY3VyeS5zYWJyZW4uY29tMIGfMA0GCSqG SIb3DQEBAQUAA4GNADCBiQKBgQCtw81fs1Kx9v7iFghAtwrMr1xy8h7ZrIwYsjUr +ZhN/EpiMYfGFbHsZH1B1bJMHfiyUtgf9VrUDNt/InN7TFDl3KOsluvxD/lmsLov kvsNLDpvy72Lnxb77WaNGjKAXKQ3bsLf0XmuH8rs1EGmJKjsKaC7ANhwjadDOHnM Cd/MkwIDAQABoxUwEzARBglghkgBhvhCAQEEBAMCBkAwDQYJKoZIhvcNAQEEBQAD gYEAnGWCpGvMAIO0yZllZcK1p9OFwAWTRONcXLUzAgXxQaAbQDRrA6AeiqAoCGn5 L6UcAT3Fvj2D7bgAn7QDMk6cbDtl0BfhKsvuyU0bU3RQNKufjph7G6dgScRwd6Vs POwCJzB5p0EKPYiQ4eNtyusnmxtS9rZGm4ogJ22aHtcpqQo= -----END CERTIFICATE-----
Certs for all machines are listed here: