====== GetEMail ======
Returns the text of the letter in accordance with the specified parameters.
===== Syntax =====
function GetEMail(aHost: string; aUser: string; aPassword: string;
aContains: string; aDelete: bolean; aIndex: integer): string;
==== Parameters ====
* **//aHost//**
* //type:// string
* //functions:// pop3 mail server address
* **//aUser//**
* //type:// string
* //functions:// user name
* **//aPassword//**
* //type:// string
* //functions:// user password
* **//aContains//**
* //type:// string
* //functions:// text included in the body or subject of the letter
* **//aDelete//**
* //type:// boolean
* //functions:// flag indicating whether to delete a letter
* **//aIndex//**
* //type:// integer
* //functions:// index of the received letter from found
==== Returned value ====
* //type:// string
* //functions:// text of the received letter
===== Examples =====
-//Get the first letter containing waspace test and delete it
var emailtext := GetEmail('smtp.mail.ru','user','pass','waspace test',true,0);