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Zimbra Open Source

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Step 1: Share the Public IP Addresses of Your Outgoing Zimbra Open Source SMTP Servers
Step 2: Configure DNS Settings for Your Domain
Verify if Zimbra server connects successfully to Vaultastic connector on port 25. To confirm the connectivity, use the Telnet command as mentioned below. telnet o365-v4.vaultastic.com 25 On successful connection to the Vaultasti...
Step 3: Set forwarding and auto bcc
In Zimbra (Open Source), t o journal incoming and outgoing mails for the selected users, you have to define a  mail forwarding rule and an auto-bcc rule. Define these rules for all users for whom you need to enable the archiving.  A mail forward...