SSL error after upgrading to 2.31

[Marc Perkel]

After upgrading to 2.31 I'm getting this error. Not sure what I'm doing 
wrong.

No (No signatures could be verified because the chain contains only one 
certificate and it is not self signed.)


ssl = yes

ssl_cert = </etc/exim/certs/ctyme.com.crt
ssl_key = </etc/exim/certs/ctyme.com.key
ssl_ca = </etc/exim/certs/ca.crt


local mail.ctyme.com {
   protocol imap {
     ssl_cert = </etc/exim/certs/ctyme.com.crt
     ssl_key = </etc/exim/certs/ctyme.com.key
     ssl_ca = </etc/exim/certs/ca.crt
   }

   protocol pop3 {
     ssl_cert = </etc/exim/certs/ctyme.com.crt
     ssl_key = </etc/exim/certs/ctyme.com.key
     ssl_ca = </etc/exim/certs/ca.crt
   }
}

local mail.junkemailfilter.com {
   protocol imap {
     ssl_cert = </etc/exim/certs/junkemailfilter.com.crt
     ssl_key = </etc/exim/certs/junkemailfilter.com.key
     ssl_ca = </etc/exim/certs/ca.crt
   }

   protocol pop3 {
     ssl_cert = </etc/exim/certs/junkemailfilter.com.crt
     ssl_key = </etc/exim/certs/junkemailfilter.com.key
     ssl_ca = </etc/exim/certs/ca.crt
   }
}
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