Issue IMAP requires security certificate? Maybe?

[Peter Debik]

@marvin On a license sold by your reseller you save a lot of money compared to the license that you get from Plesk directly. This can be an advantage, but it is also clear that it comes at a price, and that price is that you get support from your reseller. If your reseller does not provide support, please do not blame that on Plesk. Plesk support is always here to help. Just please do not expect Plesk support to work for you if you are not willing to pay for Plesk support. You cannot possibly expect to get a lot of savings through the reseller license, but yet get the full Plesk support service anyway.