May 5th, 2024


Consulting and Contract Development

John Levine consults and performs prototype development for e-mail and other Internet systems through his company Taughannock Networks (Ta-GANN-ick, named after a local landmark).

Through his leadership of the IRTF Anti-Spam Research Group, the Coalition Against Unsolicited Commercial E-mail, the Network Abuse Clearinghouse, and extensive informal contacts in the ISP and e-mail software community, he offers insight and advice on the design and implementation of e-mail systems.

He offers a series of white papers on electronic mail, along with shorter mini-papers and a weblog on e-mail technology.

He also offers e-mail system development, particularly on systems built around the popular qmail mail system.

Expert Witness

Dr. Levine has served in an expert witness on a variety of computer related topics.

  • Internet E-mail and Spam: he's been an expert in several cases related to e-mail and spam.

    In Blue Mountain Arts vs. Microsoft he was Blue Mountain's expert. He analyzed and reported on Microsoft's software and systems, and was deposed by Microsoft's counsel. The case was settled.

    In Virginia vs. Jaynes et al. he was the Commonwealth of Virginia's expert, testifying about his analysis of the e-mail that Jaynes sent, and why it was not plausible that the had been solicited by the recipients. The jury found Jaynes guilty and sentenced him to nine years in prison.

    He's also participated in other cases not in the public record.

  • Graphics file formats: Dr. Levine has been retained as an expert witness for possible litigation related to patents on computer image file formats. His book Graphics File Formats, 2nd ed is one of only two ever written on the topic.

  • Compilers: Dr. Levine has been retained as an expert witness for possible litigation related to patents on compilers, computer software that translates one computer language into another. Since 1986 he has been the moderator of the comp.compilers newsgroup, an informal online journal with an estimated readership over 100,000.



John R. Levine
Taughannock Networks
Post Office Box 727
Trumansburg NY 14886
+1 607 330 5711
info@taugh.com