ZCS Administrator's Guide 7.2.3
ZCS Administrator's Guide 7.2.3
Open Source Edition


Zimbra MTA

Zimbra MTA
The Zimbra MTA (Mail Transfer Agent) receives mail via SMTP and routes each message, using Local Mail Transfer Protocol (LMTP), to the appropriate Zimbra mailbox server.
The Zimbra MTA server includes the following programs:
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In the VMware Zimbra Collaboration Serverconfiguration, mail transfer and delivery are distinct functions. Postfix primarily acts as a MTA and the Zimbra mail server acts as a Mail Delivery Agent (MDA).
MTA configuration is stored in LDAP and a configuration script automatically polls the LDAP directory every two minutes for modifications, and updates the Postfix configuration files with the changes.
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