string text = project.Variables["message"].Value;
text = text.Replace("+","%2B");
text = text.Replace("%","%25");
text = text.Replace("&","%26");
text = text.Replace("Ё","%A8");
text = text.Replace("ё","%B8");
text = text.Replace("А","%C0");
text = text.Replace("Б","%C1");
text = text.Replace("В","%C2");
text = text.Replace("Г","%C3");
text = text.Replace("Д","%C4");
text = text.Replace("Е","%C5");
text = text.Replace("Ж","%C6");
text = text.Replace("З","%C7");
text = text.Replace("И","%C8");
text = text.Replace("Й","%C9");
text = text.Replace("К","%CA");
text = text.Replace("Л","%CB");
text = text.Replace("М","%CC");
text = text.Replace("Н","%CD");
text = text.Replace("О","%CE");
text = text.Replace("П","%CF");
text = text.Replace("Р","%D0");
text = text.Replace("С","%D1");
text = text.Replace("Т","%D2");
text = text.Replace("У","%D3");
text = text.Replace("Ф","%D4");
text = text.Replace("Х","%D5");
text = text.Replace("Ц","%D6");
text = text.Replace("Ч","%D7");
text = text.Replace("Ш","%D8");
text = text.Replace("Щ","%D9");
text = text.Replace("Ъ","%DA");
text = text.Replace("Ы","%DB");
text = text.Replace("Ь","%DC");
text = text.Replace("Э","%DD");
text = text.Replace("Ю","%DE");
text = text.Replace("Я","%DF");
text = text.Replace("а","%E0");
text = text.Replace("б","%E1");
text = text.Replace("в","%E2");
text = text.Replace("г","%E3");
text = text.Replace("д","%E4");
text = text.Replace("е","%E5");
text = text.Replace("ж","%E6");
text = text.Replace("з","%E7");
text = text.Replace("и","%E8");
text = text.Replace("й","%E9");
text = text.Replace("к","%EA");
text = text.Replace("л","%EB");
text = text.Replace("м","%EC");
text = text.Replace("н","%ED");
text = text.Replace("о","%EE");
text = text.Replace("п","%EF");
text = text.Replace("р","%F0");
text = text.Replace("с","%F1");
text = text.Replace("т","%F2");
text = text.Replace("у","%F3");
text = text.Replace("ф","%F4");
text = text.Replace("х","%F5");
text = text.Replace("ц","%F6");
text = text.Replace("ч","%F7");
text = text.Replace("ш","%F8");
text = text.Replace("щ","%F9");
text = text.Replace("ъ","%FA");
text = text.Replace("ы","%FB");
text = text.Replace("ь","%FC");
text = text.Replace("э","%FD");
text = text.Replace("ю","%FE");
text = text.Replace("я","%FF");
text = text.Replace("+","%2B");
text = text.Replace("%","%25");
text = text.Replace("&","%26");
text = text.Replace("Ё","%A8");
text = text.Replace("ё","%B8");
text = text.Replace("А","%C0");
text = text.Replace("Б","%C1");
text = text.Replace("В","%C2");
text = text.Replace("Г","%C3");
text = text.Replace("Д","%C4");
text = text.Replace("Е","%C5");
text = text.Replace("Ж","%C6");
text = text.Replace("З","%C7");
text = text.Replace("И","%C8");
text = text.Replace("Й","%C9");
text = text.Replace("К","%CA");
text = text.Replace("Л","%CB");
text = text.Replace("М","%CC");
text = text.Replace("Н","%CD");
text = text.Replace("О","%CE");
text = text.Replace("П","%CF");
text = text.Replace("Р","%D0");
text = text.Replace("С","%D1");
text = text.Replace("Т","%D2");
text = text.Replace("У","%D3");
text = text.Replace("Ф","%D4");
text = text.Replace("Х","%D5");
text = text.Replace("Ц","%D6");
text = text.Replace("Ч","%D7");
text = text.Replace("Ш","%D8");
text = text.Replace("Щ","%D9");
text = text.Replace("Ъ","%DA");
text = text.Replace("Ы","%DB");
text = text.Replace("Ь","%DC");
text = text.Replace("Э","%DD");
text = text.Replace("Ю","%DE");
text = text.Replace("Я","%DF");
text = text.Replace("а","%E0");
text = text.Replace("б","%E1");
text = text.Replace("в","%E2");
text = text.Replace("г","%E3");
text = text.Replace("д","%E4");
text = text.Replace("е","%E5");
text = text.Replace("ж","%E6");
text = text.Replace("з","%E7");
text = text.Replace("и","%E8");
text = text.Replace("й","%E9");
text = text.Replace("к","%EA");
text = text.Replace("л","%EB");
text = text.Replace("м","%EC");
text = text.Replace("н","%ED");
text = text.Replace("о","%EE");
text = text.Replace("п","%EF");
text = text.Replace("р","%F0");
text = text.Replace("с","%F1");
text = text.Replace("т","%F2");
text = text.Replace("у","%F3");
text = text.Replace("ф","%F4");
text = text.Replace("х","%F5");
text = text.Replace("ц","%F6");
text = text.Replace("ч","%F7");
text = text.Replace("ш","%F8");
text = text.Replace("щ","%F9");
text = text.Replace("ъ","%FA");
text = text.Replace("ы","%FB");
text = text.Replace("ь","%FC");
text = text.Replace("э","%FD");
text = text.Replace("ю","%FE");
text = text.Replace("я","%FF");