anchor.diff:      function SetSSLConnection : TGetMailPop3;
       function SetTLSConnection : TGetMailPop3;
       function SetAcceptOnlyMailFromSpecificDomain : TGetMailPop3;
  -    function SetAllowedSenderDomain(const aAllowedSenderDomain: String): TGetMailPop3;
  +    function AddAllowedSenderDomain(const aAllowedSenderDomain: String): TGetMailPop3;
     end;
   
     // https://github.com/IndySockets/Indy/issues/192
  
positive.code:     FUserName: String;
      FPassword: String;
      FAcceptOnlyMailFromSpecificDomain : boolean;
      FAllowedSenderDomain : String;
      FSSLConnection : boolean;
      FTLSConnection : boolean;
      FReceivedMails : TObjectList;
  
negative.code:   Result := Self;
  end;
  
  function TGetMailPop3.AddAllowedSenderDomain(const aAllowedSenderDomain: String): TGetMailPop3;
  begin
    FAllowedSenderDomains.Add(LowerCase(aAllowedSenderDomain));
    Result := Self;
  end;
  
  