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In response to the university’s request to limit the number of unsolicited email messages (spam) arriving in APU inboxes, IMT has implemented a centralized spam detection system called Symantec Brightmail Anti-Spam (Brightmail).
[Spam] Brightmail works by scanning all incoming email messages before they reach APU inboxes and tagging the message subjects with “[Spam]” if they meet specific criteria defined by the Brightmail filters.
Symantec mail security (Messaging Gateway, Mail Security for Microsoft Exchange, Message Gateway for Service providers and similar) has missed spam, newsletter, or marketing messages or generated a false positive which needs to be submitted to Symantec Security Response Center for examination. Cloud or ATP Email who believe they have encountered a False Positive from the Cynic component, please see Email Anti-Malware.
Brightmail's services were mostly geared toward ISPs, whose subscribers were demanding a solution to spam or junk email, as it is estimated that fifty percent of all email is unwanted spam.TECH232869 - Message Audit Logs show incorrect characters at the end of Russian email subject lines TECH233872 - Recipient validation rejects uncached recipients with 550 response when LDAP source is unavailable TECH233111 - Log settings are not taking effect when saved from Remote logging UI TECH233114 - TECH234530 - Application error when copying a favorite report with a long name.TECH233694 - DNS resolution failure messages in the mail server log TECH233695 - Failure to detect CPU internal temperature on SMG 8340 (R210-II) platforms TECH235659 - IGS file within is not detected in CF policies TECH234536 - Conduit log shows "Temporary Redirect" errors TECH233823 - Received header omits hostname following update to Messaging Gateway 10.6 TECH233871 - Fallback to plaintext delivery might not work in some situations where opportunistic TLS fails TECH235646 - Weak MAC algorithms allowed for ssh connections TECH235657 - Issues importing a UTF-16 formatted content filtering dictionaries TECH235658 - Control center requests missing stats file hundreds of times a second.The suspect spam feature of Symantec Brightmail products is intended to augment the spam filtering.It is up to administrators of the product to determine a threshold which is suitable for the organization.