Since RFC 1521 discourages the use of the old "NAME" parameter, my question
is this: when trying to communicate file name information between old and
new MIME mailers, is it recommended to upgrade the older application to
employ the "experimental" RFC 1806 or to "downgrade" the new application to
RFC 1341? Has RFC 1806 achieved widespread popularity among MIME mailers?
It gets worse. some mailers use 'Content-Description' for the
filename.
By and large, 1806 is in use. Best thing to do is use both methods,
and prefer C-D on reciept.
-Rens