* Fourhundred Thecat: > What is the legitimate reason to use base64 encoded emails ?
Languages with an alphabet size of more than the puny 26 characters used in English, for example. ;-) While quoted-printable encoding would do as well in many cases, MUAs may opt to use base64 instead. The primary disadvantage I see is the inherent waste of space, but given the evolution of storage space and network connectivity, that's a minor issue to me in 2019. > Would it be crazy to want to configure Postfix to not accept base64 ? Very much so, assuming that you wish to communicate with anybody not using only US-ASCII, or that you wish to keep receiving attachments. > I believe email should be plaintext. The introduction of RFC1341 in 1992 made it quite obvious that other people think differently. While plain text is still very much a thing in mailing lists (and rightly so), modern email uses encompass much more than sending text messages. -Ralph