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Spam filtering

To set up, or change, your spam filter on Hermes you need to use Hermes Webmail. If you are not a regular Hermes Webmail user then, once you have done this, you can continue to use your usual mail program as normal.

  • Go to "https://webmail.hermes.cam.ac.uk/ and login in the usual way
  • select Settings from the Application Bar then Mail Processing in the left hand column
  • select Junk Email and specify the threshold (score) above which you wish to have mail filtered (filtering is enabled by default)
  • Select Update

We recommend setting the threshold to 5 at first and adjusting it based on how well it works for you. If you set your threshold to less than 5 you should expect legitimate email to be classified as spam. Higher thresholds will let more spam through, and thresholds of 10 (the default) or more let everything through. Note that the filter is most accurate for English email so if you exchange a lot of foreign-language email you will probably have to use a higher threshold.

Your filtered mail will automatically be put in a special folder (mailbox) called "spam". You should check this folder regularly, especially to begin with, to make sure it does not contain any genuine mail. This folder needs to be emptied regularly; if you do not tidy your mail folders often enough and you reach your filespace quota, it will not be possible to deliver mail to you. By default, messages in your spam folder will be thrown away automatically after 60 days; you can change this time limit on the same page that you used to set up and enable filtering.

Note that if you are a POP user (that is, your mail is normally stored in folders on your own system rather than on the mail server), you will not be able to see the spam folder on the mail server, so you may need to use Webmail to check and clear the folder from time to time. Most Cambridge users will be using IMAP rather than POP, and so do not have this problem.

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