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Q: What is [External] Email Tagging
A: External Email Tagging is where the tag “[External]” is added to the beginning of the subject line for all email messages that were sent from external sources.  In other words, messages not from

Q: What is the purpose of the [External] tag?
A:  The [External] tag is there to help you to realize the message did originate from an email address.  With a message tagged as [External] you need to consider:

  • Exercise caution on all external messages, especially with links or attachments you are not expecting.
  • Is it from a sender you know? Were you expecting the email? Verify with the sender of the message over the phone if you are unsure or if the email seems a bit off.
  • Does the message make sense? A legitimate message would not ask you to provide your credentials to maintain your account access.

Q: Are all [EXTERNAL] tagged messages dangerous?
A: No. Many legitimate messages come from external sources. However, a common phishing method is via Email. The [EXTERNAL] tag helps bring attention to email messages that are not from the University.

Q: When is this change taking effect?
A: Monday, October 26, 2020

Q: Can I opt out of or turnoff [EXTERNAL] tagging?
A: No, [EXTERNAL] tagging is added to all email subject lines to help signify email from external sources. 

Q: I received an email that was tagged as [EXTERNAL], but it came from a system my department uses on a regular basis. Is there a way to get an exemption from the [EXTERNAL] tagging?
A: It is the intent that all external messages should have the [External] tag. However, in some cases it may be possible to configure the service to send email as  Please enter a Tech Support Ticket at for assistance.

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