I've updated to 3.1 on the master server without any problems (some small login issues on the admin panel in chrome/firefox but internet explorer works so I'll figure that out later)... anyways, when I update ISPC on the dedicated mail server (slave) everything seems to go fine until I try to connect with an email client: then warnings pop up that a self signed cert is being used where before a positive ssl cert was active. I've tried updating with both 'reconfigure services' yes and selected, resulting in the same error. And for the life of me I can't figure out where to fix this (I've checked the postfix and dovecot ssl settings and also did an ls -l in /etc/ssl and all these files seem to be unchanged). It's late and I'm probably missing something obvious but any help is appreciated. debian jessie / dovecot / postfix / ISPC 3.1 (master) and 18.104.22.168p9 (slaves) Let's hope not too many out-of-offices etc will be set before I get this fixed... not looking forward to multiple database replication error mail messages being sent every minute For now I'm just restoring a snapshot so people will be able to start emailing in the morning without having to accept a self signed cert.