==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release):
- Linux/BSD distribution name and version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Web server (Apache or Nginx):
- Manage mail accounts with iRedAdmin-Pro?
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

I got a ssl cert from a vendor and installed it on the domain.com which is working fine.  However when i try to access the admin panel (mail.domain.com), the certificate does not verify because my certificate is not a wildcard certificate.  Do we need to use wildcard cert so that they can be applied for both mail.domain.com and domain.com? 

But i saw some posts where it said its better to use a single domain cert to have less issues.  Is that true?