WarmerlyWarmerly ahead on this row
SPF, DKIM, DMARC and MX every 6 hours, each finding with a fix
Warmerly
Woodpecker
One-to-one · SPF, DKIM and DMARC monitoring
SPF, DKIM and DMARC monitoring
One row, in depth: what each tool does, the verified numbers, and who each suits.
Woodpecker details read from its pricing, home, features, integrations, agency and help centre pages on 21 October 2026.
Warmerly
SPF, DKIM, DMARC and MX every 6 hours, each finding with a fix
Woodpecker
Domain audit for SPF and DKIM with a domain age report; DMARC not mentioned
The short answer
SPF, DKIM and DMARC monitoring, in one look.
Warmerly checks SPF, DKIM, DMARC and MX every 6 hours, judges each on quality, and gives a fix with every finding. Woodpecker's domain audit checks SPF, DKIM and domain age, runs when you connect a mailbox and again only when you press Refresh, and by its own page does not check DMARC or blocklists. Woodpecker is ahead on one thing: a domain age report, which Warmerly does not have.
Woodpecker
Domain audit for SPF and DKIM with a domain age report; DMARC not mentioned
The picture
Drawn side by side.
How often the records are looked at
Warmerly sweeps every 6 hours and on demand. Woodpecker does not say how often its domain audit runs.
WarmerlyWoodpecker
WarmerlyEvery 6 hours, each mailbox that is not dead or paused
Sweep6 hoursSweep6 hoursSweep
- SPF
- DKIM
- DMARC
- MX
WoodpeckerDomain audit
Runs on connecting, then on Refresh
| Tool | Frequency |
|---|---|
| Warmerly | Every 6 hours, and on demand |
| Woodpecker | On connecting a mailbox, then when you press Refresh |
What each check looks at
Warmerly judges quality, not only whether a record exists, and writes a fix for each finding.
WarmerlyWoodpecker
WarmerlySPF, DKIM, DMARC and MX
- SPF
- Ending, the limit of 10 DNS lookups, broken terms
- DKIM
- Key length, 1024 bits or shorter is flagged, and the t=y test flag
- DMARC
- p=, sp=, pct= and whether rua= is set
- MX
- Present or missing
Also 6 domain and 10 IP blocklists, and free DMARC report monitoring for up to 10 domains.
WoodpeckerWhat its pages name
- SPF
- Checked by the domain audit
- DKIM
- Checked by the domain audit
- Domain age
- A report
- DMARC
- Not checked
Not checked DMARC and blocklists, by its own page.
Woodpecker says domains and mailboxes it sells come with SPF, DKIM and DMARC pre-configured. A known limit on Warmerly's side: DKIM is found by trying common selector names, so a provider with another selector can read as no signature found until you enter it. Read 21 October 2026.
On screen
What it looks like.
WarmerlySample data
How Warmerly does it
Warmerly, in detail.
Records are swept every 6 hours, each is judged on quality, and each finding comes with a fix and, for SPF and DMARC, the record to paste. Blocklists and free DMARC report monitoring sit in the same place. The check is honest about what it could not read: a check that failed to run shows as unknown, never as a pass.
01
More than 'does the record exist'
SPF is checked for its ending, for the limit of 10 DNS lookups and for broken terms. DKIM is checked for key length (1024 bits or shorter is flagged) and the t=y test flag. DMARC is checked for p=, sp=, pct= and rua=. MX is checked for presence.
Warmerly product, checked 21 October 2026
02
Every 6 hours, or on demand
The sweep runs every 6 hours across every mailbox that is not dead or paused, and the Health tab has a Re-check now option.
Warmerly product, checked 21 October 2026
03
A written finding with a fix
Each finding has a title, an explanation and a fix. Where it can, the card shows the record to paste.
Warmerly product, checked 21 October 2026
04
Blocklists and DMARC reports
Warmerly queries 6 domain and 10 IP blocklists. Free DMARC report monitoring covers up to 10 domains per workspace.
Warmerly product, checked 21 October 2026
05
A known limit
DKIM is found by trying common selector names plus any you set, so a provider with another selector can read as no signature found until you enter it.
Warmerly product, checked 21 October 2026
06
The record to paste
Under an SPF or DMARC check that is not passing, the card shows the exact record: type, host, value and a copy button. SPF is suggested only for Google and Microsoft mailboxes, merged into the record already published so there stays one SPF record per domain. A DMARC suggestion is a monitor-only p=none when none exists. Nothing is shown on a provider-managed domain or under a passing check.
Warmerly product, checked 21 October 2026
07
DMARC reports, read for you
You point your DMARC rua at a Warmerly address and Warmerly reads the daily aggregate reports mailbox providers send, showing who sends as your domain and whether it passes. A domain counts as verified when its published rua names that address, which proves control. Reports are fetched every 30 minutes and kept for 90 days. It is free for up to 10 domains per workspace.
Warmerly product, checked 21 October 2026
08
Where Warmerly is behind
We found no domain age report in the DNS code or the domain health card. Woodpecker's audit has one. The IP blocklist check uses the mailbox's configured submission server, so for large providers it is skipped rather than reported against an address you do not own.
Warmerly product, checked 21 October 2026
How Woodpecker does it
Woodpecker, in detail.
A domain audit is included on all plans and checks SPF, DKIM and domain age for each connected mailbox. By its own page it runs on connecting and then only when you press Refresh, and it does not check DMARC or blocklists. The home page says bought domains arrive with SPF, DKIM and DMARC set up, and the features page lists a free Deliverability Monitor.
01
Domain audit
The features page says the domain audit checks SPF and DKIM settings and gives a domain age report. No figures or schedule are given.
woodpecker.co/features · read 21 October 2026
02
Pre-configured on bought domains
The home page says domains and mailboxes come with SPF, DKIM and DMARC pre-configured.
woodpecker.co · read 21 October 2026
03
An SPF checker tool
A free SPF checker is listed among its resources. DKIM and DMARC checkers are not mentioned on the pages we read.
woodpecker.co/email-deliverability · read 21 October 2026
04
What the audit page says it checks
The audit shows three rows per mailbox. SPF says which servers may send as your domain. DKIM is a cryptographic signature on the message. Domain age is green when the domain is older than 3 months and orange when younger, with a warning that sending too soon risks burning it. SPF and DKIM use green for valid, red for needs updating and a minus for temporary.
woodpecker.co/domain-reputation · read 22 October 2026
05
What the audit page says it does not check
The page says its report does not check DMARC and that DMARC will not work if SPF and DKIM are both missing. It recommends adding DMARC about 48 hours after SPF and DKIM, starting at p=none. It lists blocklist status, reputation score and bounce history as outside the audit and points to other tools such as MXToolbox, Cisco Talos and Google Postmaster Tools.
woodpecker.co/domain-reputation · read 22 October 2026
06
When it runs
The page says that when you connect a mailbox the check runs by itself on the domain it sends from, and that nothing re-checks on its own. You press Refresh after a DNS change or DKIM rotation. Results sit in the connection panel and under Settings, Accounts, your mailbox, Domain Check-up.
woodpecker.co/domain-reputation · read 22 October 2026
07
Deliverability Monitor
The features page lists a Deliverability Monitor as free for all users, said to help you spot upcoming deliverability problems at one glance. It does not say whether it reads DNS records.
woodpecker.co/features · read 22 October 2026
What Woodpecker does not say
We looked, and found no statement on these. That is about its published pages only, not about the product.
- Alerts when a record breaks after the audit has run
- Fixes or a record to paste for a failing check
- A DMARC report reader
- A DKIM key length check, or a check on SPF lookup count or ending
- Whether the Deliverability Monitor reads DNS records
Where the sources disagree
We report each version rather than pick one.
- Woodpecker's home page says it supports DMARC, and that domains come with DMARC pre-configured, while its domain audit page says its report does not check DMARC. We read these as different things: setting DMARC up on bought domains, and auditing it afterwards.
- Woodpecker's features page lists the domain audit and a free Deliverability Monitor, and its audit page says nothing re-checks on its own. We did not find whether the monitor re-reads DNS, so we do not assume it does.
The numbers
Only what we could verify.
| Measure | Warmerly | Woodpecker |
|---|---|---|
| SPF, DKIM and DMARC monitoring | SPF, DKIM, DMARC and MX every 6 hours, each finding with a fix | Domain audit for SPF and DKIM with a domain age report; DMARC not mentioned |
| Records checked | SPF, DKIM, DMARC and MX | SPF and DKIM, plus domain age |
| Check frequency | Every 6 hours | On connecting a mailbox, then when you press Refresh |
| Blocklists queried | 6 domain and 10 IP lists | None in the audit; the page points to other tools |
| DMARC reports | Free monitoring for up to 10 domains | None found; the audit does not check DMARC |
| Domain age report | Not found | Green over 3 months, orange under |
| Fix for a failing record | Written finding, with the record to paste for SPF and DMARC | Not found |
In practice
What it means for you.
Our reading of the facts above. Not a promise, and not the only reasonable reading.
Monitoring, not a one-off check
A sweep every 6 hours catches a record that breaks after launch. Woodpecker's own page says nothing re-checks on its own, so a record changed by a colleague or a host after day one stays unseen until someone presses Refresh.
Ask about DMARC
If you rely on DMARC reports, Woodpecker's audit page says its report does not check DMARC. Warmerly reads the reports themselves for up to 10 domains.
Who it suits
Pick the one that fits.
Warmerly
Warmerly is the better fit if
- You want records re-checked every 6 hours with a fix for each problem
- You want blocklist checks and DMARC reports in the same place
- You want to see the exact record to publish for SPF and DMARC
Woodpecker
Woodpecker is the better fit if
- You buy domains through Woodpecker, which says they arrive configured
- An SPF and DKIM check plus a domain age report is enough
- You want a signal on how old a new domain is before you send
Questions
Does Woodpecker check DMARC?
No, by its own domain audit page: it says its report does not check DMARC.
How often does Warmerly check DNS?
Every 6 hours across each mailbox that is not dead or paused, and on demand.
Does either tool check blocklists?
Warmerly queries 6 domain and 10 IP lists. Woodpecker's audit queries none and points to other tools.
Does Woodpecker have anything Warmerly lacks here?
Yes, a domain age report, green over 3 months and orange under. We found none in Warmerly.
Sources
- Woodpecker features page
- Woodpecker home page
- Woodpecker email deliverability page
- Woodpecker domain audit page
Woodpecker pages were read on 21 October 2026. Plans and wording change, so check the vendor's own page before you decide. Warmerly details come from the product as it runs today.
More features
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