Phishing and Anti-Spam Efforts

[EXTERNAL] Email Tag In Message Subject

Most email scams begin with messages from an external email system. As part of LCSD's effort to reduce phishing and other email scams, these external email messages will now receive an [EXTERNAL] tag in the message subject.

Internal Message Subject Example:

"Meeting today at 3:00pm"


External Message Subject Example:

"[EXTERNAL] Meeting today at 3:00pm"


Phishing emails are getting more sophisticated and compelling. The email subject might be worded in a very compelling way. The text itself may include threats of lost access, requests to change your password, or even IRS fines. The sender’s email address can be a clever fake or can even be “spoofed” to appear like someone you know. Don’t believe it!

Many safe and legitimate email messages come from external email systems. The [EXTERNAL] tag does not mean the message is a scam, but it does provide additional information about the message source. The [EXTERNAL] tag is there to help. The [EXTERNAL] tag means you need to stop and think about this email:

This feature will help protect your account from possibly being compromised as well as protect the LCSD.  If your account gets compromised, the spammers may gain access to LCSD systems and confidential information.  

Can I personally opt-out of [EXTERNAL] tagging?

No, [EXTERNAL] tagging is added to all LCSD email accounts to help signify email from unknown sources.

Are [EXTERNAL] tagged messages dangerous?

Not all [EXTERNAL] messages are dangerous. Many legitimate messages come from external sources. However, a common phishing technique is spoofing our GoCommodores email addresses. The [EXTERNAL] tag is one more signal to determine authenticity.

Does [EXTERNAL] tagging do any addtioanl scanning, filtering, or sorting?

No additional scanning, filtering or sorting is performed. If the message origin is a non-LCSD system then [EXTERNAL] is added to the beginning of the email message subject.