Hi,
On 12/11/17 05:39, Simon Matthews wrote:
I have generated a new certificate for my CentOS 6/postfix server, and
it seems to work with most clients, but when I try to send email using
tls from my Android device, it always fails.
In my postfix log, I see:
warning: TLS library problem: 13671:error:14094416:SSL
routines:SSL3_READ_BYTES:sslv3 alert certificate
unknown:s3_pkt.c:1275:SSL alert number 46:
I get the same message when using the same new certificate with
dovecot, so I don't think it is a postfix issue.
To generate the certificate, I used the following commands:
openssl genrsa -out MatthewsCA2017.key 2048
openssl genrsa -des3 -out MatthewsCA2017.key 2048
openssl req -x509 -new -nodes -key MatthewsCA2017.key -sha256 -days
3000 -out MatthewsCA2017.pem
openssl genrsa -out smtp.matthews-family.org.uk.key 2048
openssl req -new -key smtp.matthews-family.org.uk.key -out
smtp.matthews-family.org.uk.csr
openssl x509 -req -in smtp.matthews-family.org.uk.csr -CA
MatthewsCA2017.pem -CAkey MatthewsCA2017.key -CAcreateserial -out
smtp.matthews-family.org.uk.crt -days 3000 -sha256
Any ideas on what might be wrong?
you seem to have generated your own (new) CA and server certificate; is
this CA (public) cert installed in postfix correctly. More importantly,
is this new CA distributed to all devices?
An alert 46 usually hints at SSL3_AD_CERTIFICATE_UNKNOWN
HTH,
JJK
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