Warmerly
Free spam words and HTML checkers; pre-launch checks warn about spam-style copy.
Warmerly
GlockApps
One-to-one · Content and spam checks
Content and spam checks
One row, in depth: what each tool does, the verified numbers, and who each suits.
GlockApps details read from its pricing, home, product, Trust Center, API and MCP pages and help centre on 21 October 2026.
Warmerly
Free spam words and HTML checkers; pre-launch checks warn about spam-style copy.
GlockApps
Content analysis and spam filter scores in each test report, with message size, image and link checks and an HTML checker.
The short answer
Content and spam checks, in one look.
Warmerly has free spam word and HTML checkers and pre-launch warnings, but no audit of a real test message. GlockApps' spam test reports include content analysis, and its pages mention checks on message size, images and links and an HTML checker. GlockApps is ahead here. Last checked 22 October 2026.
GlockAppsGlockApps ahead on this row
Content analysis and spam filter scores in each test report, with message size, image and link checks and an HTML checker.
The picture
Drawn side by side.
Where the check happens
As each describes it
WarmerlyGlockApps
Warmerly
Write the sequencePre-launch checkWarning on spam-style copy
GlockApps
Send a real messageTest against the seed listContent analysis and filter scores
Warmerly has no audit of a real test message. GlockApps scores your message with five named filters.
How Warmerly does it
Warmerly, in detail.
Free stand-alone checkers, and a warning before launch.
01
A free spam words checker
A spam word checker is one of the free tools, with no account needed.
Warmerly product, checked 21 October 2026
02
A free HTML checker
An email HTML checker is among the free tools.
Warmerly product, checked 21 October 2026
03
Pre-launch checks
A readiness check blocks a launch with no usable step or sender, and warns about DNS problems and spam-style copy.
Warmerly product, checked 21 October 2026
04
No message audit in the product
There is no content audit of a real test message, and no Gmail or Outlook spam-trigger report.
Warmerly product, checked 21 October 2026
05
Spam score is a number, with a threshold
The pre-launch content check warns at a spam-word score of 25 or more, shouting or repeated punctuation in a subject, more than 5 links or more than 3 images.
Warmerly product, checked 21 October 2026
06
A warning asks you to confirm
A warning does not block a launch, but the start request refuses once until you confirm you accept it, so it cannot be missed.
Warmerly product, checked 21 October 2026
07
Merge tags are checked against your leads
A step that uses a token that is neither built in nor a custom field on your leads blocks the launch, so a broken {{first_name}} does not go out.
Warmerly product, checked 21 October 2026
08
The opener needs a brief
A step that uses the AI opener blocks the launch until the campaign has a brief written.
Warmerly product, checked 21 October 2026
09
No unsubscribe link is flagged
A sender with no verified tracking domain and no link base is warned about, because the mail would carry no unsubscribe link.
Warmerly product, checked 21 October 2026
10
Lead research is checked for the opener
When the AI opener is used and more than 20% of queued leads lack a website summary, the launch check warns, though research also runs at send time.
Warmerly product, checked 21 October 2026
11
The default template needs a brief
The three-step cold intro template uses the AI opener, so it blocks until a brief is written. The plain three-step template has no opener and needs no brief.
Warmerly product, checked 21 October 2026
How GlockApps does it
GlockApps, in detail.
Content analysis inside the spam test report.
01
Content analysis in a test
Its spam testing page says to analyse your email content, sender reputation and recipient preferences for better inbox visibility.
glockapps.com/spam-testing · read 21 October 2026
02
Message size, images and links
Its home page says to check key elements: message size, images and links.
glockapps.com · read 21 October 2026
03
An HTML checker
Its home page lists an HTML checker for compatibility across devices and platforms.
glockapps.com · read 21 October 2026
04
Spam filter scores
A test report shows scores from SpamAssassin, Barracuda, Microsoft EOP, Proofpoint and a Google filter.
glockapps.com/spam-testing · read 21 October 2026
05
Scores from five filters
A report shows spam scores from SpamAssassin, Barracuda, Microsoft EOP, Proofpoint and a Google filter, with content insights.
glockapps.com/spam-testing · read 22 October 2026
06
API content fields
Through the API you can read link health, message and image size and HTML and CSS rendering support across email clients.
glockapps.com/api · read 22 October 2026
07
The rules that fired
The API page says spam filter scores come with the rules that triggered.
glockapps.com/api · read 22 October 2026
08
An MCP content tool
Its MCP server can analyse email content and HTML and explain the main deliverability issues.
glockapps.com/mcp · read 22 October 2026
09
Link Checker is optional
A manual test lets you switch the Link Checker on or off. The page does not say what it checks.
glockapps.com/spam-testing · read 22 October 2026
10
Reports export and white label
A report exports to PDF and can be white labelled, so content findings can be handed on as they are.
glockapps.com/spam-testing · read 22 October 2026
11
Content insights are part of the test
Content insights come with the spam scores in the same report, so one send gives both.
glockapps.com/spam-testing · read 22 October 2026
What GlockApps does not say
We looked, and found no statement on these. That is about its published pages only, not about the product.
- A list of the content rules it checks
- Whether message headers are analysed in the report
- The list of content rules it checks
- How the spam score is scaled
- Whether images are scanned or only counted
The numbers
Only what we could verify.
| Measure | Warmerly | GlockApps |
|---|---|---|
| Content and spam checks | Free spam words and HTML checkers; pre-launch checks warn about spam-style copy. | Content analysis and spam filter scores in each test report, with message size, image and link checks and an HTML checker. |
| Filters scoring content | None found | 5 named filters |
| Free content tools | Spam words and HTML checkers | An HTML checker, 2 free tests |
| Check before sending | Pre-launch warning | A test per message |
| Link and image limits flagged | More than 5 links or more than 3 images | Not stated |
| Spam word threshold | Score of 25 or more | Not stated, filter scores instead |
| Content analysis through assistants | Not offered | Offered through MCP and API |
In practice
What it means for you.
Our reading of the facts above. Not a promise, and not the only reasonable reading.
A test message is the stronger check
Warmerly's warning is about spam-style copy. GlockApps runs your real message through filters.
Free tools help either way
Warmerly's spam words and HTML checkers need no account, whichever tool you use to test.
A heuristic is not a filter
Warmerly's warning is a rule of thumb: five links is fine, six warns. A real filter such as SpamAssassin weighs hundreds of signals, which is what a GlockApps score reflects. Use the warning to catch obvious faults and a test to check the rest.
Check merge tags first
The expensive mistake is a campaign that goes out with a blank name or a broken tag. Warmerly blocks that. A spam score does not tell you about it.
Two stages, not two products
Draft, run Warmerly's pre-launch checks, then send a copy through a tester if the message matters. That order catches faults cheaply before it spends a test credit.
Cost of checking
A Warmerly pre-launch check costs no test allowance. A GlockApps content read costs one credit, so Essential's 360 credits allow 360 message checks a year on the annual figure, if each test is one message and credits are all spent on content.
Who it suits
Pick the one that fits.
Warmerly
Warmerly is the better fit if
- You want a warning in the campaign flow
- You want free checkers with no account
- You do not need filter scores
- You want broken merge tags to stop a launch
- You want an HTML and spam words checker with no account
- You want a warning on a missing unsubscribe link
GlockApps
GlockApps is the better fit if
- You want your real message scored by spam filters
- You want content analysis in the test report
- You want an HTML check for devices and platforms
- You want content scored by real filters
- You want an assistant to read the report and explain it
- You want HTML rendering checks across email clients
- You want a PDF of content findings for a client
Questions
Does GlockApps check email content?
Its spam test reports include content analysis, and its home page lists message size, image and link checks and an HTML checker (glockapps.com, read 21 October 2026).
Does Warmerly check email content?
It has free spam word and HTML checkers and a pre-launch warning about spam-style copy. It does not audit a real test message.
Does Warmerly score my content against Gmail's filter?
No. It warns on spam-style copy by rules (a spam-word score of 25 or more, more than 5 links or 3 images), and it cannot see Gmail's filter.
Which GlockApps filters score my message?
SpamAssassin, Barracuda, Microsoft EOP, Proofpoint and a Google filter (glockapps.com/spam-testing, read 22 October 2026).
Can GlockApps read my report to an assistant?
Its MCP server can analyse content and HTML, explain the main issues, compare results and make a shareable report link (glockapps.com/mcp, read 22 October 2026).
Sources
GlockApps 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
- All features
- Starting price (per month)
- Pricing model
- Free plan or trial
- Active warmup (send, open and reply loop)
- Inbox placement and spam tests
- Providers and spam filters tested
- DMARC reporting
- SPF, DKIM and DMARC checks
- Uptime and IP reputation monitors
- Campaign sending
- API and MCP
- Agencies, teams and white label
- Security and data hosting
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