Out of the blue suddenly all outgoing email messages are delayed since yesterday. Exchange generates a warning email stating that delevery is delayed. Troubleshooting the Exchange message queue unearths that the error is 'server does not support secure connections' I did not touch any settings recently, the server's third party certificate is valid through 2013.
What is happening?
EDIT: I checked the Certicicate using Get-ExchangeCertificate | fl. I found a few self-issued certificates that were valid, but my comercially issued certificate is qualified as invalid (I removerd the SN en the thumbprint:
AccessRules : {System.Security.AccessControl.CryptoKeyAccessRule, System
.Security.AccessControl.CryptoKeyAccessRule, System.Securi
ty.AccessControl.CryptoKeyAccessRule, System.Security.Acce
ssControl.CryptoKeyAccessRule}
CertificateDomains : {www.fk27.com, fk27.com}
HasPrivateKey : True
IsSelfSigned : False
Issuer : CN=EssentialSSL CA, O=COMODO CA Limited, L=Salford, S=Grea
ter Manchester, C=GB
NotAfter : 20-9-2013 1:59:59
NotBefore : 19-9-2008 2:00:00
PublicKeySize : 1024
RootCAType : Unknown
SerialNumber : (removed)
Services : IIS, SMTP
**Status : Invalid**
Subject : CN=www.fk27.com, OU=EssentialSSL, OU=Domain Control Valida
ted
Thumbprint : (removed)
So, what do I do now?