System information

You can enable SMTP forwarding as a method for adding messages to the Barracuda Message Archiver, and also specify trusted hosts so that
the Barracuda Message Archiver accepts only those messages forwarded by trusted (whitelisted) hosts. You enable SMTP forwarding on the MAI
page. When enabled, and one or more IP addresses are listed as trusted, mail is accepted only from the listed IPL SOURCES > SMTP/IM
address; mail is blocked and not archived if the source is from an IP address not listed in this section. When disabled, and one or more IP
addresses are listed as trusted, mail coming from a listed IP address is accepted no matter the domain present in the SMTP envelope of the
inbound mail, and mail coming from an IP address not listed in this section is rejected if the SMTP envelope does not contain a domain listed in
the Local Domains section on the BASIC > IP Configuration page.
Trusted SMTP Servers
Trusted forwarding servers are those servers whose messages are to be accepted and archived by the Barracuda Message Archiver. When
dd the IP aSMTP forwarding is enabled on the MAIL SOURCES > SMTP/IM page, a ddresses of all trusted forwarding servers that will send
messages to be archived in the Trusted SMTP Servers section of the page. All messages arriving from the servers listed here are always added
to the archive regardless of the domain name present in the SMTP envelope. Any messages forwarded from servers in this list are rejected.not
If you are using Microsoft Exchange and are using Envelope Journaling to send messages to the Barracuda Message Archiver via SMTP, add the
IP address of each Exchange Server to this section.
If no IP addresses are listed in this section, the Barracuda Message Archiver accepts email for domains listed in the Local Domains section on
the BASIC > IP Configuration page if that domain is present in the SMTP envelope of the inbound email.
Exchange Stubbing
This article refers to the Barracuda Message Archiver release 3.1 and higher, and Microsoft Exchange Server.
®
in this article
Frequency
Policy-Based Stubbing
End-User Controls
Unstubbing
Restoring Stubbed Content to Microsoft Exchange
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Mailboxes
Some administrators of Microsoft Exchange servers may wish to enable stubbing to store attachments on the Barracuda Message Archiver rather
than on the mail server itself, since doing so can greatly increase the storage capacity of their mail server, in some cases by as much as 70%.
Stubbing and Microsoft Exchange Import
For stubbing and Microsoft Exchange imports initiated via the Barracuda Message Archiver user
interface, there is a 100MB limit on file import.
Whitespace Recovery
Once stubbing is complete, view the Microsoft technet article to determine how best to recoverEseutil /D Defragmentation Mode
whitespace located within the Exchange Server mailstore.