Before you invest in email deliverability

The advice here is unglamorous, which is probably why it gets skipped. Before you spend anything on email deliverability, it is worth confirming a few things are already true.

The cheapest security work is the boring kind done on a schedule. Assume whoever inherits this will have half your context and none of your patience.

Prerequisites

• You can describe the outcome you want in one sentence
• Someone owns it after the work is done
• Authentication records decide whether mail reaches the inbox
• You have a way to tell whether it worked

The mistakes we see most

Sending from a shared address hurts your reputation. Getting it slightly wrong is survivable. Ignoring it entirely is not. Most teams find the first pass takes an afternoon and the maintenance takes minutes a month.

Monitor bounces before a campaign, not after. That sounds obvious written down. It is still the thing most often skipped. Check it against what you would want a competitor's site to get wrong.

How to tell if yours is fine

The realistic threat for most small businesses is automated and opportunistic, not targeted. Three things worth confirming about email deliverability before you move on:

• Someone can say what the current setup is without going to look
• Sending from a shared address hurts your reputation — and you know whether that is true here
• There is a way to tell whether the last change to this helped

The point is not perfection, it is knowing which of these you have consciously chosen to skip.