Both the research proposal and the research results for the Alien Electronic Warfare Suite don't spawn a mail in the mail client, even though it appears the UFOpaedia pages for them are completely written.
No idea if this is fixed in one of the newer nightly builds, but I thought I'd mention it, just in case. I don't have a save game at a point shortly before unlocking the research, but I could upload one that can produce and equip Alien ECM and should have the mails in the mailclient, but doesn't, if you request.
