This DKIM setup tutorial checklist covers everything you need before, during, and after setup. Bookmark this page and work through it systematically — skipping steps is the most common reason campaigns fail or tools underperform.
Before You Start: Foundation Checklist
- ☐ Verify domain ownership and DNS access
- ☐ Set up SPF record with all authorised senders listed
- ☐ Configure DKIM with 2048-bit keys (not 1024-bit)
- ☐ Add DMARC record — start with p=none and monitor for 2 weeks
- ☐ Check if your domain or IP is on any blacklists (MXToolbox)
- ☐ Confirm your reverse DNS (PTR) record is set correctly
Setup Checklist: Dkim Setup Tutorial
- ☐ Choose the right tool — see ZeroPhantom Email Warmup for a proven option
- ☐ Set initial sending volume conservatively (50–100/day for new domains)
- ☐ Define your ramp-up schedule (double volume every 5–7 days)
- ☐ Configure bounce handling — hard bounces remove immediately
- ☐ Set up list hygiene automation — remove inactives every 90 days
- ☐ Enable click and open tracking to measure engagement
Content and Sending Checklist
- ☐ Subject line under 50 characters, no spam trigger words
- ☐ Plain text version included alongside HTML
- ☐ Text-to-image ratio at least 60% text
- ☐ Single, clear call-to-action per email
- ☐ Unsubscribe link visible and working
- ☐ Physical address included (CAN-SPAM requirement)
- ☐ Tested in Gmail, Outlook, and mobile clients
Monitoring Checklist (Weekly)
- ☐ Check Google Postmaster Tools — domain reputation tab
- ☐ Review bounce rate (target: below 2%)
- ☐ Review spam complaint rate (target: below 0.1%)
- ☐ Check inbox placement rate across providers
- ☐ Review open and click rates vs previous week
- ☐ Re-run blacklist check if anything looks off
💡 Pro Tip: One credit wallet covers file conversion, OCR, and temp mail — credits never expire. Running this whole checklist takes about 2 hours the first time and 20 minutes per week thereafter.
Troubleshooting Checklist
- ☐ Emails in spam? → Check SPF/DKIM first, then content score
- ☐ High bounce rate? → Verify your list with a validation tool
- ☐ Low open rates? → Test subject lines and sending times
- ☐ Blacklisted? → Identify source of complaints, request delisting
Try it free: ZeroPhantom Email Warmup — no signup, no KYC. See ZeroPhantom Tools for full pricing.