olemus
digitaalsõnumi globaalselt ühene identifikaator,
näiteks e-postis, uudisegruppides
=
a unique identifier for a digital message, most commonly a globally unique identifier used in email and Usenet newsgroups

ülevaateid
https://en.wikipedia.org/wiki/Message-ID

https://www.accelo.com/resources/blog/how-to-find-an-email-s-message-id/

https://www.stellarinfo.com/blog/importance-of-email-message-id-in-email-forensics/

https://www.mailxaminer.com/blog/message-id-forensic/

https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.149.5284&rep=rep1&type=pdf

standardid
https://tools.ietf.org/html/rfc5322
https://tools.ietf.org/html/rfc2392
https://tools.ietf.org/html/rfc6532