Engineered Signal
Cordytech LLC is a software and web development company. We build and run the email sending infrastructure behind companies that send at volume — EMG, Relentia and Mobicentrum among them — and we offer that same engineering as a service, alongside the demo-led apps we build ourselves. The through-line is signal: getting the right message to the right place, reliably, at scale, with the plumbing done properly underneath.
Three sending operations we build and run — different businesses, the same infrastructure discipline underneath.
Email marketing, running on sending infrastructure we have operated since January 2024.
View companyEmail sending infrastructure, run remotely from Morocco since January 2025.
View companyA bilingual marketing site and the CMS behind it — designed, built and hosted since November 2025.
View companyThe sending operation where Mailflow was first built, 2023 to 2025.
View companyThe standards our client infrastructure runs on, offered to teams building their own products.
Custom web apps, designed, built, and shipped end to end.
Read moreMulti-tenant platforms built to scale, from MVP to production hardening.
Read moreWiring automation, AI agents, and third-party platforms into products you already run.
Read moreDemo-led products that double as reference builds of how we work.
The control plane for email sending infrastructure.
View appOne revenue number across every affiliate network you run.
Join waitlistEvery bucket you own, behind one login.
Join waitlistFinance-ops for teams that outgrew the spreadsheet.
View appWorkflow automation for field-service teams.
Join waitlistSpecific, technical notes on the things we operate.
Interface strings and client content are two different problems, and conflating them is why the French half of a site ends up two services behind the English. Here is the split we build to, and why the front end is server-rendered.
Read noteA field-tested ramp for new sending IPs: the prerequisites that must be perfect, a provider-by-provider volume schedule, the signals to watch, and how to back off when a mailbox provider pushes back.
Read noteThree DNS records decide whether a receiver believes your mail is really yours. Here is what SPF, DKIM and DMARC each prove, where they break, and how we configure all three for the sending operations we run.
Read noteWe work on scoped engagements and demo-led products — no self-serve sign-up. Tell us the problem and we will tell you honestly whether we are the right team.