Notepad:Zimbra Zimbra Let's encrypt

Zimbra renew let'sencrypt

From : Zimbra Letsencrypt SSL Renew

su zimbra
zmproxyctl stop
zmmailboxdctl stop

Then return root user and renew Letsencrypt certificate

exit
certbot renew

Change directory to Zimbra Letsecnrpyt SSL folder

cd /opt/zimbra/ssl/letsencrypt/

Copy new SSL files to Zimbra Letsencrypt folder then change owner to Zimbra.

At this point change {YourSSLDomain} to your domain which is we are working on.

cp /etc/letsencrypt/live/{YourSSLDomain}/* .
chown zimbra:zimbra /opt/zimbra/ssl/letsencrypt/*

Add X3 root certificate to our chain.pem

nano /opt/zimbra/ssl/letsencrypt/chain.pem

-----BEGIN CERTIFICATE-----
MIIDSjCCAjKgAwIBAgIQRK+wgNajJ7qJMDmGLvhAazANBgkqhkiG9w0BAQUFADA/
MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT
DkRTVCBSb290IENBIFgzMB4XDTAwMDkzMDIxMTIxOVoXDTIxMDkzMDE0MDExNVow
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Ob8VZRzI9neWagqNdwvYkQsEjgfbKbYK7p2CNTUQ
-----END CERTIFICATE-----

Newer One

-----BEGIN CERTIFICATE-----
MIIFFjCCAv6gAwIBAgIRAJErCErPDBinU/bWLiWnX1owDQYJKoZIhvcNAQELBQAw
TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh
cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMjAwOTA0MDAwMDAw
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CkcheAmCJ8MqyJu5zlzyZMjAvnnAT45tRAxekrsu94sQ4egdRCnbWSDtY7kh+BIm
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yJMC6alLbBfODALZvYH7n7do1AZls4I9d1P4jnkDrQoxB3UqQ9hVl3LEKQ73xF1O
yK5GhDDX8oVfGKF5u+decIsH4YaTw7mP3GFxJSqv3+0lUFJoi5Lc5da149p90Ids
hCExroL1+7mryIkXPeFM5TgO9r0rvZaBFOvV2z0gp35Z0+L4WPlbuEjN/lxPFin+
HlUjr8gRsI3qfJOQFy/9rKIJR0Y/8Omwt/8oTWgy1mdeHmmjk7j1nYsvC9JSQ6Zv
MldlTTKB3zhThV1+XWYp6rjd5JW1zbVWEkLNxE7GJThEUG3szgBVGP7pSWTUTsqX
nLRbwHOoq7hHwg==
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIFazCCA1OgAwIBAgIRAIIQz7DSQONZRGPgu2OCiwAwDQYJKoZIhvcNAQELBQAw
TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh
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emyPxgcYxn/eR44/KJ4EBs+lVDR3veyJm+kXQ99b21/+jh5Xos1AnX5iItreGCc=
-----END CERTIFICATE-----

Now let's check our certificates are verified via Zimbra certificate manager

/opt/zimbra/bin/zmcertmgr verifycrt comm privkey.pem cert.pem chain.pem 

If you see done message in your console, first make a backup of course...

cp -a /opt/zimbra/ssl/zimbra /opt/zimbra/ssl/zimbra.$(date "+%Y%m%d")

cp /opt/zimbra/ssl/letsencrypt/privkey.pem /opt/zimbra/ssl/zimbra/commercial/commercial.key

Soooo, we are ready to deploy new certificates, run deploycrt command via zmcertmgr.

/opt/zimbra/bin/zmcertmgr deploycrt comm cert.pem chain.pem 

at last, here is a happy restart.

su zimbra
zmcontrol restart