I have 10 years of experience in an ISP environment administering and developing SMTP infrastructure based on Postfix, Sendmail, Exim, Brightmail, Ironport Email Appliances in single-server and distributed cluster scenarios on Linux and FreeBSD. I have a detailed knowledge and working experience of SMTP, DNS infrastructure and protocols and can deliver well architected Mail servers based on Linux and any MTA software of choice. I can also offer reliable long term support for Linux and SMTP Mail software with continuity planning.