Know where your email lands before you hit send

Inbox Placement tests your campaign at Google, Yahoo! and Outlook.com and shows whether it reaches the Inbox, lands in Spam or gets rejected, and exactly why.

Works with HubSpotMailchimpMarketoSalesforce+100 more

Catch content, link, authentication and reputation problems while you can still fix them.

Test My Next Campaign About Delivery Center

Included in Delivery Center, which comes with a 30-day money-back guarantee.

Landing in spam right now?

Check authentication with a free DMARC and SPF lookup.
Check blacklists with a free blacklist lookup.
Test the message itself. If both are clean, the problem is usually content or domain reputation, which Inbox Placement shows you.

Passing DMARC but still in spam?

Gmail, Yahoo! and Outlook also judge your content and your domain reputation, and keep private blocklists. A placement test is the only way to see the result.

What every test checks

Check	What it tells you
Placement at each provider	Inbox, Spam/Junk, or rejected at Google, Yahoo! and Outlook.com
Content quality	Wording, image count, links and patterns that make your email look like spam
Email rendering	Your message rendered with each issue highlighted, so you can see where it breaks best practices
Blacklists	Whether your domain or sending IPs are listed
SPF, DKIM and DMARC	Whether this message passes and aligns, and which records to fix
Bulk sender rules	Google, Yahoo! and Microsoft requirements, including one-click unsubscribe, kept current as the rules change
Provider spam rules	Signs of content or domain reputation problems and proprietary blocklists that can block DMARC-compliant mail

How it works

Send a test

Copy our test inboxes on a campaign, newsletter, password reset or billing email, from any sending system.

Or test every send

Add our test inboxes to your regular lists, and every newsletter or campaign gets checked automatically.

Read the report

See where the email landed at each provider, every issue we found, and what to change.

Built for the way your team sends

Email Marketers

Test campaigns before they go out, and fix content, image and link issues before they cost you opens, clicks and revenue.

DMARC Adopters

Verify that real messages pass and align, sender by sender, and catch failures your aggregate reports only show after the fact.

IT Email Administrators

Test the mail your systems send, like password resets and billing notices, so critical messages don't disappear into spam.

Test My Next Campaign

A test is a snapshot. Reputation is ongoing.

Placement can change between sends as recipients react to your mail. Recipient Complaints, also in Delivery Center, tracks Google spam rate, Yahoo! feedback loops and Microsoft SNDS so you see trouble coming between tests.

Learn about Recipient Complaints →

20+ years in email deliverability

42K+Domains trust MxToolbox

100+Blacklists checked

120+Countries

MillionsMessages processed hourly

Part of Delivery Center

Inbox Placement is one piece of a full email reputation toolkit. Paid Delivery Center plans also include:

Recipient Complaints

Google spam rate, Yahoo! feedback loops, Microsoft SNDS and more in one view.

Learn more →

DMARC Compliance

Meet bulk sender rules, then move to enforcement to protect your brand and sending reputation.

Learn more →

Adaptive Blacklist Monitoring

Watch every sending IP, including ESPs like Mailchimp and HubSpot, across 100+ blacklists.

Learn more →

Compare every plan below ↓

Frequently asked questions

Which inbox providers do you test?

Google (Gmail), Yahoo! and Microsoft Outlook.com.

Does it work with my email platform?

Yes. It works with any sending system, including HubSpot, Mailchimp, Marketo, Salesforce and 100+ more. You just add our test inboxes as recipients.

Can I test transactional email?

Yes. Password resets, receipts, billing notices and other system email can be tested the same way as campaigns.

Why is my email in spam if it passes DMARC?

DMARC proves the mail is really from you, not that recipients want it. Content, domain reputation and providers' private blocklists can still send compliant mail to spam.

Does it check bulk sender rules?

Yes. Each test checks Google, Yahoo! and Microsoft bulk sender requirements, including authentication and one-click unsubscribe, and we update the checks as the rules change.

How does a placement test work?

Send your campaign to MxToolbox's test accounts, or subscribe them to your list. Results show whether each message reached the inbox, landed in spam or junk, or failed.

What are MxTips and MxScore?

MxTips are recommendations grouped into best practices, content, security and reputation, each marked Failed, Warning or Success. MxScore weights them by importance so you know what to fix first.

Rather have experts handle it? MxToolbox Managed Services handles your email reputation for you, from inbox placement to DMARC enforcement. Learn about Managed Services → or call +1 (866) 698-6652.

Compare plans

Start free, or pick the plan that fits how you send.

	Free$0One domain, top 30 blacklistsSign Up	Delivery Center$129/monthManage your own email reputationBuy Now30-day money-back guarantee	Delivery Center Plus$399/monthHigher volume, complex sendersBuy Now	Managed ServicesCustom pricingOur experts do it for youSchedule a Consultation
Plan limits
Domains	1	5	5	Custom
Email message volume	—	500,000	5,000,000	Custom
Monitoring
Blacklist monitoring Checks your senders against public blacklists and alerts you when a new listing appears	Top 30 lists, weekly	Every sender, 100+ lists	Every sender, 100+ lists	Every sender, 100+ lists
Adaptive Blacklist Monitoring Finds every service sending as your domain, including ESPs and CRMs, from your DMARC reports and adjusts automatically when their IPs change	—	✓	✓	✓
Outbound + Inbound Mailflow Monitoring Round-trip test messages every 5 minutes, tracking queue delays and server response times, with alerts at your thresholds	—	✓	✓	✓
Inbox Placement
Inbox Placement tests Inbox, Spam/Junk or rejected at Google, Yahoo! and Outlook.com	—	30 / month	100 / month	100 / month
Email visualization Your full email rendered, with MxTips highlighting risky content	—	✓	✓	✓
Content quality analysis Wording, image counts, links and unsubscribe patterns that look like spam, with images verified and links tested before you send	—	✓	✓	✓
Email header analysis SPF, DKIM and DMARC alignment checked on every test message	—	✓	✓	✓
Bulk sender rule tests Google, Yahoo! and Microsoft requirements, updated as the rules change	—	✓	✓	✓
Domain, IP & content reputation Uncover the proprietary blocklist and reputation issues behind spam placement	—	✓	✓	✓
Recipient complaints
Google Postmaster spam rate Track your Gmail spam rate against Google's 0.1% target and 0.3% limit	—	✓	✓	✓
Feedback loops (ARF) Complaint reports from Yahoo!, Outlook.com, Mailgun and others	—	✓	✓	✓
Complaint analysis See who is complaining, clean your lists and audit campaign quality	—	✓	✓	✓
DMARC reporting
RUA aggregate reports Daily reports from Google, Outlook.com, Yahoo! and 500+ inbox providers, parsed for you	—	✓	✓	✓
Sender discovery Find the legitimate, unknown and unauthorized senders using your domain	—	✓	✓	✓
RUF forensic reports Individual messages that failed authentication, turned into actionable reports	—	✓	✓	✓
SPF & DKIM alignment tracking Pass and alignment rates by sender and DKIM selector	—	✓	✓	✓
Configuration & protection
SPF, DKIM & DMARC configuration management Expert recommendations and tools to set up SPF, DKIM and DMARC and keep them current as your senders change	—	✓	✓	✓
DMARC enforcement (Domain Impersonation Protection) Move safely from p=none to quarantine and reject to block spoofing and BEC without blocking your own mail	—	✓	✓	✓
BIMI Adoption and Management Validates your BIMI record, SVG logo and VMC or CMC certificate, and alerts you before a certificate expires	—	✓	✓	✓
SPF Flattening Keeps your SPF record under the 10-lookup limit and rebuilds it as you add senders	—	—	✓	✓
Advanced threat tools See the IP ownership, geolocation and reputation of unknown senders to trace who is spoofing your domain	—	—	✓	✓
Expert service
Onboarding support & account walkthrough	—	✓	✓	✓
Email setup assessment of every internal and 3rd-party sender	—	—	—	✓
Hands-on SPF, DKIM and DMARC implementation	—	—	—	✓
Expert analysis of your DMARC report data	—	—	—	✓
Proactive monitoring, alerts and recommendations	—	—	—	✓
Ongoing maintenance as senders and requirements change	—	—	—	✓
Team education & DMARC compliance training	—	—	—	✓
	Free$0Sign Up	Delivery Center$129/monthBuy Now	Delivery Center Plus$399/monthBuy Now	Managed ServicesCustom pricingSchedule a Consultation

Plans & pricing30-day money-back guarantee on Delivery CenterCompare all features

Free$0Sign Up

Delivery Center$129/moBuy Now

Delivery Center PlusDC Plus$399/moBuy Now

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Stop guessing where your campaigns land

Test every send at Google, Yahoo! and Outlook.com, and fix problems before your customers miss your email. Delivery Center is backed by a 30-day money-back guarantee.

Test My Next Campaign