Project: Experts with smtp applications

We are in need of an expert with SMTP protocol. We need someone who has developed smtp engines in the past and can modify it to creating our own mailing application which uses the smtp engine. It's essential that you have already done work related to smtp because the project deadline from start to finish is 7 days. If you have created mailing apps in the past and are well versed with the smtp protocol, post a bid and let's discuss.