> On 28 November 2018, at 01:03, Matus UHLAR - fantomas <uh...@fantomas.sk> > wrote: > > On 27.11.18 10:52, Asai wrote: >> With Mozilla recently dropping support for all Symantec certs, our security >> cert now throws errors on Thunderbird clients. We’d like to install >> certbot on Centos 6, but I’m not sure if it’s going to interfere with >> Postfix (2.11) or Dovecot (2.2.18). Does anybody have experience with >> this? > > I have no problem with Let's Encrypt certificates and postfix/whatever. > I'm just not sure if iphones have the root CA (DST Root CA X3) installed - > just yesterday noticed a complaint. >
The latest version of iOS have the proper root certificate. I am using Let's Encrypt certificates for dovecot and postfix. I access and send mail frequently using an iPhone and iPad. If you are dealing with an older version, the user can accept the certificate and that will also work.
