Spam filters
Contents
- What are spam filters?
- Using spam filters in Webmail
- Using spam filters in e-mail applications
- Notes
1. What are spam filters?
Tokyo Tech Mail uses the Cloudmark spam filter service. When a spam filter detects a spam e-mail, the Cloudmark service adds "X-titech-spam" to the e-mail's header information.
2. Using spam filters in Webmail
Messages marked as spam are stored in the "Spam" folder and then automatically deleted after 30 days. E-mails that spam filters determine to be spam cannot be automatically forwarded.
If you use automatic sorting (Filters), your personal settings take priority over any spam filters. To give priority to the spam filters, go to your automatic sorting settings and instruct the system to send messages with "Mail Header" containing "X-titech-spam: Inspected" to the "Spam" folder.
3. Using spam filters in e-mail applications
- When using IMAP for incoming e-mail
- You can look at the contents of the "Spam" folder directly.
- When using POP3 for incoming e-mail
- Log in to Webmail and check the "Spam" folder to see messages marked as spam.
4. Points to note
Spam filters do not always detect spam correctly. Generally, the filters have an accuracy rate of around 90%. In rare cases, spam filters may mistake a regular e-mail for spam. If you run into that sort of problem with certain types of e-mails, go to the automatic sorting settings in your Webmail to receive those e-mails on a priority basis.
If you would like to receive all e-mails addressed to you, including possible spam messages, go to the automatic sorting settings (Filters) in your Webmail and instruct the system to send messages with "Mail Header" containing "X-titech-spam: Inspected" to the "Inbox" folder.
