public void Should_ReturnSenderMailAddressFromBody_WnehCalledGetSenderFromForwardedMail(string body, string mailAddress)
{
//arrange
var mailMessage = new MailMessage
{
Body = body,
};
var mailMessageParser = new MailMessageParserThunderbird();
//act
var result = mailMessageParser.GetSender(mailMessage);
//assert
result.Address.Should().Be(mailAddress);
}