Why is Sendmail still around?

[John Levine]

In article <20190330034328.2ecbd2c8.freebsd at edvax.de> you write:
>Sorry, maybe I didn't write my current problem in a more
>precise way: The SmartHost option (mail relay provided by
>ISP) is gone, ...

Are you saying your mail provider offers no submission server
for its users?  

That's very hard to believe.  If your provider is Schlund,
I think you'll find the submission server at smtp.1and1.com on
port 587.

R's,
John