Running your infrastructure in a secure configuration is a daunting task even for security professionals. This guide provides practical advice to help engineers build up infrastructure following security best practices so that they can confidently deploy their services to the public Internet and lower their chances of being compromised. This guide specifically targets Linux based systems; however, the best practices apply to all computer systems.
This was posted on August 28, 2014. Until recently, Mailgun has been in a managed colo environment hosted by our parent company, Rackspace, using bare metal servers.
This post was written by Russell Jones, a software developer at Mailgun responsible for open-sourcing our mime-parsing library flanker. Today he’s going to blog about how we optimized outbound connections and reduced sending time while implementing opportunistic TLS. The same technique can be used to optimize everything from web crawling to high-throughput external APIs, but we’ll discuss SMTP as an example.
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