> On 06/08/2019 22:49 telsch via dovecot <dovecot@dovecot.org> wrote: > > > Hello, > > using letsencrypt ssl certs with san works perfectly with 2.2.34, but > after uprading to 2.3.4.1 it couldn't verified (also tried v2.3.7.1). > > i connect to imap.myserver.lan > > the cn of the cert is myserver.lan and has the san imap.myserver.lan > > openssl s_client -connect imap.myserver.lan:993 > CONNECTED(00000005) > depth=0 CN = imap.myserver.lan > verify error:num=20:unable to get local issuer certificate > verify return:1 > depth=0 CN = imap.myserver.lan > verify error:num=21:unable to verify the first certificate > verify return:1 > --- > Certificate chain > 0 s:CN = imap.myserver.lan > i:C = US, O = Let's Encrypt, CN = Let's Encrypt Authority X3 > > > if i cat ssl_ca and ssl_cert into one file and only use ssl_cert it's working > with 2.3.X > > ssl_ca = </etc/ssl/ca-bundle.pem > ssl_cert = </etc/ssl-imap.pem
ssl_ca is not supposed to be automatically cat'ed into the certificate. The correct way is to put cert and leafs to the cert in order towrads root into ssl-imap.pem. ssl_ca is intended for verifying clients connecting to the server. Aki
