Email deliverability / Recruitment & B2B teams

Inbox
Field Guide.

When good email goes missing.

Trace the sending route, read the evidence and find the next useful check.

Diagnose an email problem

Free tools. No mailbox connection.

03 / The recruitment edition

Same agency.
Different sending routes.

Your ATS, automation and connected mailbox may send differently. Start with the product you use.

The recruitment field guide

04 / Keep these to hand

Three tools. No sign-up.

Work through a symptom, read a header
or give IT a clear brief.

01

Email diagnostic

Three questions. An ordered next step for your symptom and sending route.

Start the diagnostic
02

Header explainer

Read recorded authentication results. No upload, DNS lookup or signature verification.

Read a header
03

IT handoff builder

Put the symptom and evidence into a brief. Copy, download or print it.

Build a handoff

Tool input stays in your browser. Guides cite provider documentation. Paid options are explained with their limits.

How this guide is written

05 / When you need placement evidence

Put a test behind
the hunch.

Your message says delivered. A candidate says spam. Learn how to run a controlled test and read the result without jumping to conclusions.

The recruitment testing walkthrough →
GlockApps

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GlockApps example report, showing separate inbox, spam and missing results
Vendor-supplied example, dated 2025. Not our test results. Read the report guide.