Phil, I am having the same problem you are having on this list with random equals signs appearing in my messages. I have tried posting from both my Mac and my PC (as I am doing now) in both HTML and plain text with no luck still get the equals signs. Oddly it only happens while posting on this list and not on any of the other two dozen email lists I am on.
Frustrated
Frank

-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]] On Behalf Of Phil Scovell
Sent: Saturday, June 20, 2015 7:11 PM
To: [log in to unmask]
Subject: Yet another symbols test

Well, I finally found a mail option, through the guidance of another mac =
user that says mail in plain text.  I=E2=80=99m bummed out on trying to =
find the solution but perhaps this one will work.  I am typing a little =
longer to see what symbols might show up.  Anyhow, we shall see how this =
one comes out.  Of course, when you don=E2=80=99t know what you are =
doing in the first place, and you cannot find the answer in the manuals =
you have to reference, and when you do not know enough key strokes by =
memory to get things to where they are supposed to be, one could start =
pulling out hair, if one had any to pull.  So I will give this one a =
try.  I still have two other options of my sleeve so all is not lost if =
this does not work.

Phil.
K0NX