SSL over POP and SMTP Stops Working After Certificate Upgrade

SSL over POP and SMTP Stops Working After Certificate Upgrade

We have been using SSL over POP and SMTP for awhile and works very well.
Previously, our certificate was a 1024 bit key size and did not require an intermediate certificate.
 
On our mail server we recently had to upgrade our certificate beccause of expiration. The new certificate was issued by RapidSSL and now comes with an additional intermediate certificate.
 
Now, SupportCenter will no longer make successful connections via POPS or SMTPS.
We do not believe the poblem is with the mail server. Our other devieces can connect successfully using the newly installed certificate without the need to install the intermediate certificate at the mail server.
 
SupportCenter does work by disabling SSL and just using POP or SMTP.
 
We think the problem is one of the following:
1. The SupportCenter POP and SMTP java connector library does not support 2048 bit key size in the certificate.
2. The new certificate requires an intermdeiate certifcate to be installed somewhere. SupportCenter maybe?
 
We have looked at the following but was not successful:
 
Any guidence would be appreciated.
 
Regards
 

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