From:  opto <buecherk@gmail.com>
Date:  19 Dec 2018 00:03:11 Hong Kong Time
Newsgroup:  news.mozilla.org/mozilla.dev.apps.thunderbird
Subject:  

Re: where is MailServices in TB 60?

NNTP-Posting-Host:  67.1.52.210

So is mailServices.jsm what I find as Services.jsm in older Addons?

I have some older Addons importing Both. Maybe someone Tried to adapt already.