[Ger-Poland-Volhynia] diacritics

[marmel]

It seems in posts typed with international character alphabet letters 
(diacritics), all I can read is: ???? (question marks), as in example of the 
recent post below.  Is this the same for everyone reading the SGGEE mailing 
list?

    > 2. Re: Russian? Cyrillic (Stefan D?sterh?ft)
    > you may have confused some people which is why I would like to add:
    > the pronunciation applies to '?' *in this case only* (being part of
    > the ending -???, -??? or -???).

Is there a way for the listserve to recognize the diacritics?  If not, would 
posters consider using an approximately close latin character instead so as 
not to lose the meaning of the post? (I'm not trying to criticize anyone, as 
I really love diacritics which make a language so beautiful.)  Sadly the 
characters are not coming through in the posts and the listserve may not be 
diacritic friendly.

Any suggestions how to improve the posts?

Linda in WI