@gml said in SSL error after upgrading to 5.6.0 on ubuntu 16:
That seemed to solve it, even if a server reboot did not solve it. I also got a mail, that this was also visible from other mail-servers (not just from my mail client), as I use DANE for certificate pinning.
Thx girish!
I had the same issue. And the same fix. A reboot didn't work, a service restart did the trick. Thanks!