[MlMt] one pixel tracker images

[Randy Bush]

> That's what I do.  I have Little Snitch set to warn about everything.
> MailMate is always allowed to talk to my mailservers over SMTP and
> IMAP and to the update servers over HTTPS.  Everything else it yells
> about.

yes, but how do you know if what it is warning about is a tracker?

little snitch does have Rule Group Subscription to a URL.  so who
knows a tracker list?

randy