The package "randtext.sty", which supersedes "switcheml.sty", provides a single macro \randomize{TEXT} that typesets the characters of TEXT in random order, such that the resulting output appears correct, but most automated attempts to read the file will misunderstand it. This function allows one to include an email address on a TeX document and publish it online without fear of email address harvesters or spammers easily picking up the address. For more information, please read the comments at the top of the package file.