AspMail can encode high characters using a scheme where the = sign indicates a character to be decoded follow by the hex string value of the character to be encoded. This system of course assumes that the client can decode these characters (which most can). This is called quoted-printable encoding.
Technically, yes: both are a distance measured upwards from sea level in feet or meters. Usually, elevation is applied to land, whereas altitude is applied to aircraft in flight. Moinuddin Mondal. + 16 others found this useful.
Altitude or height (sometimes known as depth) is defined based on the context in which it is used (aviation, geometry, geographical survey, sport, and more). As a general definition, altitude is a distance measurement, usually in the vertical or up direction, between a reference datum and a point or object. The reference datum also often varies according to the context. Although the term altitude is commonly used to mean the height above sea level of a location, in geography the term elevation is often preferred for this usage. Vertical distance measurements in the down direction are commonly referred to as depth.