First – install Zimbra Then execute: yum -y install epel-release /usr/bin/crb enable yum -y install certbot create a file named /usr/local/sbin/letsencrypt-zimbra #!/bin/bash FQDN=`hostname –fqdn` /usr/sbin/service zimbra stop /usr/bin/certbot certonly -d $FQDN –standalone -n –preferred-chain “ISRG Root X1” –agree-tos –register-unsafely-without-email –key-type … Continue reading →
Installing a certificate on Zimbra 9 and I get the following error message: ** Creating file ‘/opt/zimbra/ssl/zimbra/jetty.pkcs12’ ERROR: openssl pkcs12 export to ‘/opt/zimbra/ssl/zimbra/jetty.pkcs12’ failed(1): Error creating PKCS12 MAC; no PKCS12KDF support? Use -nomac if MAC not required and PKCS12KDF support … Continue reading →
On the machine you are trying to start zimbra on su zimbra zmlocalconfig -e ldap_starttls_required=false zmlocalconfig -e ldap_starttls_supported=0 then start zimbra After that – go look at all your certs on all the zimbra servers because you have something you … Continue reading →
The disk is not full – but getting disk space utilization alerts snapd uses loop devices and they are listed as 100% use. To get zimbra to ignore loop devices su – zimbra zmlocalconfig -e zmstat_df_excludes=’/dev/loop0:/dev/loop1:/dev/loop2:/dev/loop3:/dev/loop4:/dev/loop5:/dev/loop6′ zmstatctl restart References https://wiki.zimbra.com/wiki/Disable_Disk_Space_Monitoring_for_Loop_Devices … Continue reading →
Thanks to Sam Saqr https://tech.saqr.org/2020/01/zimbra-move-change-domain-ham-spam.html !!!!! Maybe the domain that was created by default is not the domain that you intended. Or when you setup zimbra you were not paying attention and server name got added in front of the domain … Continue reading →
Delivery Status Notifications (DSN) are messages generated by a mail server to notify the sender that the email has been delivered to the destination mail server. Problem is, many systems sending email messages are doing DSN requests, but are automated … Continue reading →
Allow systems with selected ip addresses to relay email through Zimbra without needing authentication There are two ways to set and check this Global – applied to all servers set zmprov mcf zimbraMtaMyNetworks “10.1.1.0/24 [fe80::5054::]/64 127.0.0.0/8 [::1]/128” check zmprov gcf … Continue reading →
How to search sent/received e-mails from a particular email id through command line(CLI) Solution If you have a multi-server installation – do this on the logging server Search for up to 1000 emails UserA@example.com has from UserB@example.com $ zmmailbox … Continue reading →
On the source server – su – cp -a /opt/zimbra/ssl /sslbk tar -czf /sslbk.tgz /sslbk Copy sslbk.tgz to the / directory on the server you want to copy the certificate to On the destination server stop the zimbra service. On … Continue reading →
Getting a lot of email spam which has similar subject lines? You can reject it before it gets put into a mailbox As zimbra execute zmprov gs `zmhostname` zimbraMtaHeaderChecks You should see: zimbraMtaHeaderChecks: pcre:/opt/zimbra/conf/postfix_header_checks We need to add a new … Continue reading →