functionMailURLMayBeInvalid(const
s: string
): Boolean; var
i: Integer; c: string
; begin
// ' ', a, o, u, ?, [, ], (, ), : in EMail-Address Result := (Trim(s) = '') or
(Pos(' ', AnsiLowerCase(s)) > 0) or
(Pos('a', AnsiLowerCase(s)) > 0) or
(Pos('o', AnsiLowerCase(s)) > 0) or
(Pos('u', AnsiLowerCase(s)) > 0) or
(Pos('?', AnsiLowerCase(s)) > 0) or
(Pos('[', AnsiLowerCase(s)) > 0) or
(Pos(']', AnsiLowerCase(s)) > 0) or
(Pos('(', AnsiLowerCase(s)) > 0) or
(Pos(')', AnsiLowerCase(s)) > 0) or
(Pos(':', AnsiLowerCase(s)) > 0); if
Result then
Exit; // @ not in EMail-Address; i := Pos('@', s); Result := (i = 0) or
(i = 1) or
(i = Length(s)); if
Result then
Exit; Result := (Pos('@', Copy(s, i + 1, Length(s) - 1)) > 0); if
Result then
Exit; // Domain <= 1 c := Copy(s, i + 1, Length(s)); Result := Length(c) <= 1; if
Result then
Exit; i := Pos('.', c); Result := (i = 0) or
(i = 1) or
(i = Length(c)); end
;