Zimbra DKIM (DomainKeys identified Mail) in zimbra

-

Zimbra DKIM (Domainkeys identified Mail) include:
1. Private-key insert header of email sending mail server.
2. Public-key updated into DNS public.

 Step 1: To configure zimbra DKIM

 To add DKIM data into domain not existing DKIM
/opt/zimbra/libexec/zmdkimkeyutil -a -d example.com

 The output as bellow
DKIM Data added to LDAP for domain example.com with selector 0E9F133A-9577-11E1-AD0E-2A2FBBAC6BCB

 Public key to enter into DNS:
0E9F133A-9577-11E1-AD0E-2A2FBBAC6BCB._domainkey IN TXT "v=DKIM1;=rsa;
p=MIGfMA0GCXXXSSFWwfdfdfEEAA4GNADCBiQKBgQDY5CBg15nZ2vYnRmrNub6Jn6ghQ2DXQbQgOJ/E5IGziUYEuE2OnxkBm1h3jived21uHjpNy0naOZjLj0xLyyjclVy1chrhSbsGAhe8HLXUsdXyfRvNTq8NWLsUnMEsoomtJCJ
/4GSWYU1whOQ9oKZVAwWHSovAWZpByqNMZmFg7QIDAQAB" ; ----- DKIM 0E9F133A-9577-11E1-AD0E-2A2FBBAC6BCB for example.com

 After created key, then update DNS with text record is public-key a top.

 How to update zimbra DKIM data for domain
/opt/zimbra/libexec/zmdkimkeyutil -u -d example.com

 How to retrieving zimbra DKIM
/opt/zimbra/libexec/zmdkimkeyutil -q -d example.com

 How to delete zimbra DKIM data for domain
/opt/zimbra/libexec/zmdkimkeyutil -r -d example.com

 Step 2: To Add zimbra DKIM into in public DNS will looks like

 0E9F133A-9577-11E1-AD0E-2A2FBBAC6BCB._domainkey 14400 IN TXT v=DKIM1;=rsa;
p=MIGfMA0GCXXXSSFWwfdfdfEEAA4GNADCBiQKBgQDY5CBg15nZ2vYnRmrNub6Jn6ghQ2DXQbQgOJ/E5IGziUYEuE2OnxkBm1h3jived21uHjpNy0naOZjLj0xLyyjclVy1chrhSbsGAhe8HLXUsdXyfRvNTq8NWLsUnMEsoomtJCJ
/4GSWYU1whOQ9oKZVAwWHSovAWZpByqNMZmFg7QIDAQAB

 Step 3: How to test zimbra DKIM

 Have a multiple websites for tesst zimbra DKIM. For example, http://dkimvalidator.com

Comments

Post a Comment

Popular posts from this blog

Cambium cnPilot E400/E410/E500 Configuration Tutorial

-
Image
Basic Connectivity:   Router (Broadband/mikrotik |dhcp enabled) >>> E400/E410/E500 + LAPTOP Cambium (Powered ON) [POE port] >>>> LAPTOP [LAN port] Step 1: Open Cambium controller in the browser. Step 2: After entering in to the site click on the Onboard Device option from Home Tab of Left Panel. Step 3: In the Onboard Option, we will get Claim Device option to adopt a Cambium AP. Step 4: Now we will move to the Cambium AP configuration Part. Below are credentials of default login access of cnpilot E400/E410/E500/E410/E500. IP:192.168.0.1 Command Line Access: Username: admin Telnet: Disabled by default Password: admin SSH: Enabled by default (on standard port: 22) ***We can also use dhcp IP to login to the cnpilot E400/E410/E500. We will get login page. Step 5: We can see several TAB on left panel. On the DashBoard Tab, we will get some overall information. Some are useful for the configuration; some are useful for troubleshoo...
Read more

Disabling Zimbra's AntiSpam, Amavis and AntiVirus filtering

-
 Check whether antispam and antivirus service is enabled currently on server using the given command zmprov -l gs <mail.example.com> | egrep -i 'serviceen|servicein'  The above command will list all the services which are currently installed and enabled on the server. Disable the antivirus and antispam services using the given commands zmprov -l ms <mail.example.com> -zimbraServiceEnabled antispam  zmprov -l ms <mail.example.com> -zimbraServiceEnabled amavis zmprov -l ms <mail.example.com> -zimbraServiceEnabled antivirus  Comment the following line in the file /opt/zimbra/postfix/conf/main.cf content_filter = smtp-amavis:[127.0.0.1]:10024  Restart services on server zmcontrol restart  Confirm that the antispam and antivirus services are disabled with the given command zmprov -l gs <mail.example.com> | egrep -i 'serviceen|servicein'  zmcontrol status 
Read more

Error "Unable to retrive Zimbra GPG key for package validation"

-
From the installation log we see: Executing: /tmp/tmp.mSlzRMclVa/gpg.1.sh --keyserver keyserver.ubuntu.com --recv-keys 9BE6ED79 gpg: requesting key 9BE6ED79 from hkp server keyserver.ubuntu.com gpg: keyserver timed out gpg: keyserver receive failed: keyserver error 1. Open port 11371 11371 tcp,udp hkp OpenPGP HTTP Keyserver 2. Force it to use port 80: gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 9BE6ED79 Ref: https://wiki.zimbra.com/wiki/Error_%22Unable_to_retrive_Zimbra_GPG_key_for_package_validation%22
Read more