Template:Search - About Special Characters

Words inside indexed emails or attachments, which are a combination of alphanumeric and non-alphanumeric characters (white space, line break, delimiter or other control characters), may be returned in search results when searching for the alphanumerical part only.

For instance, the word test_1234 is returned when searching for test, 1234 and test_1234.

Other commonly occurring characters are:

  • Comma (,)
  • Colon (;)
  • Hyphen (-)
  • Underscore (_)
  • AT-Sign (@)
  • Slash & Backslash (/,\)
  • Null character (NUL)