The transport encoding of this part: normally, you do not need to change this, since %1 will use a decent default encoding, depending on the MIME type; yet, sometimes, you can significantly reduce the size of the resulting message, e. g. if a PostScript file does not contain binary data, but consists of pure text -- in this case, choosing "quoted-printable" over the default "base64" will save up to 25% in resulting message size.
Zatiaren garraio- kodeketa: normalean ez duzu hau aldatu behar,% 1( e) k kodeketa on bat erabiliko duelako MIME motaren arabera. Hala ere, batzutan, mezuaren tamaina murriztu dezakezu, adibidez, datu bitarrak ez dituen PostScript fitxategi batekin "AIpu inprimagarria" hautatuz "64 oinarria" - ren ordez,% 25 aurreztu dezakezu mezuaren tamainan.