Hi, I don't know a whole lot about certificates but we are getting an Exchange server error that suggests a problem with expired certificates. We have 6 certificates listed under our server in Exchange Management Console. They read:
Name "Self Signed" Status Services Subject Issuer "Expiration Date"
False "The certificate is valid for Exchange Server usage." "IIS, SMTP" CN=remote.andersonconst.com CN=andersonconst-ANDERSONCONST01-CA 12/4/2015
False "The certificate is valid for Exchange Server usage." "IMAP, POP" CN=ANDERSONCONST01.andersonconst.local CN=andersonconst-ANDERSONCONST01-CA 9/8/2014
False "The certificate is expired." "IMAP, POP, SMTP" CN=remote.andersonconst.com CN=andersonconst-ANDERSONCONST01-CA 12/4/2013
False "The certificate is expired." "IMAP, POP, SMTP" CN=Sites CN=andersonconst-ANDERSONCONST01-CA 11/30/2013
True "The certificate is valid for Exchange Server usage." None CN=andersonconst-ANDERSONCONST01-CA CN=andersonconst-ANDERSONCONST01-CA 12/1/2016
True "The certificate is valid for Exchange Server usage." None CN=WMSvc-WIN-5O4R06QK4AN CN=WMSvc-WIN-5O4R06QK4AN 11/28/2021
Do we need all these? How do I go about renewing the expired ones if they are needed? System seems to be running fine even though there are two expired. Have had an issue recently of emails not being pulled down from ISP (we use pop3 connector) on certain computers not all. The certificates that say "false" are actually self signed I think.