I've been using startssl. It's free and it works with apache, postfix and 
dovecot.

On Sun, 24 Nov 2013, Erik Mitchell wrote:

> I am setting up a new domain, and have to get SSL going on a couple of
> hostnames, for both HTTPS, IMAPs, and SMTP.
>
> Can anyone tell me if one wildcard SSL certificate will do the trick?
>
> -Erik
>
> -- 
> Erik K. Mitchell
> erik.mitchell at gmail.com
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