Email Infrastructure

Mail servers, MTA configuration, relay setup, IP management, monitoring

Choosing the Queue Driver: Database vs Redis vs SQS for AcelleMail

AcelleMail ships with `QUEUE_CONNECTION=database` as the default — and that's the right choice for installations up to ~500k emails per day. Past that threshold, database-queue contention starts to dominate worker time, and switching to Red...

May 19, 2026 12 min read Advanced Acellemail 8 15

Email Infrastructure

Dedicated vs Shared IP Address

Your sending IP's reputation directly determines whether your emails land in the inbox or spam folder. The choice between a dedicated IP (yours alone) and a shared IP (in a pool with others) sits at the center of every deliverability conver...

Apr 1, 2026 8 min read Intermediate Acellemail 3 9

Email Infrastructure

Email Queue Architecture in AcelleMail (Why Sends Are Steady, Not Sudden)

AcelleMail uses a job queue to pace out large sends — instead of trying to push 50,000 emails at once, workers pick recipients off a queue one at a time. This explainer covers why that matters for deliverability and how to read the campaign...

Mar 3, 2026 5 min read Intermediate Acellemail 7 13

Email Infrastructure

How Email Delivery Actually Works (What Happens After You Click Send)

When you press Send Campaign in AcelleMail, your message travels through five stages before it lands in someone's inbox. Knowing each stage tells you exactly where to look when a campaign goes sideways — and why some recipients see the emai...

Dec 28, 2025 5 min read Beginner Acellemail 4 10

Choosing the Queue Driver: Database vs Redis vs SQS for AcelleMail

Dedicated vs Shared IP Address

Email Queue Architecture in AcelleMail (Why Sends Are Steady, Not Sudden)

How Email Delivery Actually Works (What Happens After You Click Send)

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