we have 2 certificates on CAS server with SMTP services..One certificate is Self Signed.
Thumbprint : CE1391FF090B06BDC5DF17356914EDE2802E0BCF
Services : IMAP, POP, IIS, SMTP
IsSelfSigned : False
Thumbprint : FE52A9ACDC3848637439AA7E31C73628FD958124
Services : SMTP
IsSelfSigned : True
Could i remove FE52A9ACDC3848637439AA7E31C73628FD958124 ??