Currently, dma does not differentiate between login users on the SMTP server.
It will pick whatever entry it finds first
(https://github.com/corecode/dma/blob/v0.13/net.c#L531).
As a result, the --server parameter only adds confusion.
The state explorer gained a new value "multiple" (it is not used anywhere, just
informative).
The code will only write a "should" line once and drop duplicate lines.