The magic of Elixir in email delivery
summary
An exploration of building a high-throughput email delivery system using Elixir: discusses problems with modern MTAs and delivery guarantees, SMTP quirks, workarounds for mail provider limits, IP juggling and server warm-up, and the overall architecture. Explains why Elixir was chosen, how it helped, pitfalls encountered, and performance characteristics compared to other approaches.
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chapters (22)
- 0:00Introduction
- 5:49What is Elixir
- 7:41Why Elixir
- 9:29Email delivery problems
- 11:41Avoiding spam
- 13:47IP warming
- 15:58Multiple IPs on server
- 19:10Stability in Elixir
- 22:22Personalized emails
- 24:11Email statistics
- 25:58Delayed mail service replies
- 27:25API and docs
- 28:51Mail system architecture
- 31:44Load limiting
- 34:13Email identifiers
- 36:45Unique ID generation
- 37:46Deployment and orchestration
- 38:52Scaling and performance
- 39:57Elixir pros and cons
- 41:42Elixir microservices
- 42:03Email importance today
- 42:28Q&A
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