Hi. I have to implement SSL for IMAP, because many ISPs blocks port 25 and I have problem with roaming users. I would like to ask first to prevent issues later. My server name: ns0.test.com I have A records mail, ftp, etc. which points to the same ip. I would like to use mail.test.com for client email program configuration (Thunderbird). I have been using this configuration since I started with ISPConfig. What would be the best way to implement certificate? Additional IPs are no problem. On what domain I should create certificate. I would like to use free certificate from startcom.org. I don't currently use certificate. Thanks for help.