People look for a MailReach alternative when the per-mailbox calculator stops fitting: the total rises with every mailbox and every block of test credits, and the warm-up plan always carries a spam-testing bundle whether or not a team wants one. Some want testing without warm-up, some want warm-up in a sending tool they already pay for, and some only need free dashboards that show how Gmail sees their domain.
Sebastiaan SmitsFounderShort answer: Warmbox, Warmup Inbox and lemwarm head the list of MailReach alternatives drawn from our email deliverability tool ranking. We open the ranking with smaller vendors and put the established brands from fourth place onward. Warmbox is the one to try if you run a handful of mailboxes and want a fixed price by inbox bundle. These 11 products are all in Best Email Deliverability Tools in 2026; the notes say how each one compares with MailReach.
Vendors can pay for more visibility on this website, for example a higher place in a ranking or more room on a page. Commercial relationships can also affect which products we feature and how prominently. Every vendor link is marked the same, whatever the arrangement behind it. How that works.
MailReach's pricing page is a calculator. The All-In-One plan shows 19.5 dollars per mailbox per month, annual billing is labelled as saving 20%, and the slider offers 1, 20, 40, 60, 80 or 100+ mailboxes. One example on the page reads 1,323 dollars a month for 80 mailboxes, so an agency with many senders sees the cost scale in a straight line.
The All-In-One plan always includes at least 20 spam test credits, and the credit slider runs from 20 up to 10,000+. Spam testing can also be bought as a separate plan or pay as you go. A team that already has a warm-up routine, or that wants only placement checks, still starts from that bundled calculator.
The warm-up plan lists up to 100 emails a day, and the vendor's FAQ says a brand-new domain or mailbox needs at least 14 days of warming with no campaigns in that time. It also advises warming between campaigns, so the spend continues for as long as the mailbox is used for outreach.
| Alternative | Headquarters | Free option | Pricing model | Switch if | Our rank |
|---|---|---|---|---|---|
| Warmbox | Estonia | No free tier | Published | you run a handful of mailboxes and want a fixed price by inbox bundle | #5 |
| Warmup Inbox | Slovakia | Yes | Published | you want a trial first and a higher daily ceiling than 100 emails | #3 |
| lemwarm | France | No free tier | Published | you already send campaigns from lemlist and want warm-up inside it | #7 |
| GlockApps | United States | Yes | Published | you want placement tests and DMARC reports under one subscription | #2 |
| Mail-Tester | United States | Yes | Published | you need a quick one-off check of a single email before sending | #4 |
| Folderly | United States | Yes | Published | you want separate products for reputation, placement tests and DMARC | #6 |
| MXToolbox | Not stated by the vendor | Yes | Published | your problem is blocklists and DNS records rather than reputation building | #8 |
| Mailgun | United States | No free tier | Published | you want placement tests and trap monitoring from an email infrastructure vendor | #10 |
| Google Postmaster Tools | United States | Yes | Published | you want free Gmail-side reputation data and nothing else | #9 |
| Instantly | United States | No free tier | Published | you want to replace your outreach tool and your warm-up service together | #11 |
| Litmus | United States | No free tier | On request | your team designs marketing email and wants previews with placement data | #12 |
Estonia · Published
Warmbox is the trade name of Snowlight Ventures OÜ in Tallinn. Plans are sized by inbox count, one, three or six, with 50, 250 or 500 emails a day, and every feature sits on every plan. Anything past six inboxes moves to a custom Team plan, so a large fleet needs a quote.
Switch from MailReach if you run a handful of mailboxes and want a fixed price by inbox bundle.
Warmbox holds rank 5 among 12 entries in our email deliverability tool guide →
Slovakia · Published
CyberPanda s. r. o. in Bratislava runs Warmup Inbox, which has a free plan and a seven-day trial. Basic, Pro and Max are priced per inbox, with daily warm-up messages rising from 75 to 1,000. Custom templates, topics and language warm-up begin on Pro. The placement gains on its site are labelled internal benchmarks.
Switch from MailReach if you want a trial first and a higher daily ceiling than 100 emails.
See the full Warmup Inbox entry, ranked 3 of 12 among email deliverability tool products →
France · Published
From lempire SAS in Paris, lemwarm is included in every lemlist plan, so a team already sending through lemlist pays nothing extra for it. Bought alone, Essential and Smart are charged per email account. The vendor sets about four weeks of warm-up plus two more before real campaigns, and personalised warm-up emails exist only on Smart.
Switch from MailReach if you already send campaigns from lemlist and want warm-up inside it.
Check lemwarm in the ranked list (7 out of 12, email deliverability tool) →
United States · Published
Deluxe Custom Apps LLC publishes GlockApps with its terms under Wyoming law. One subscription holds placement test credits, DMARC message volume, uptime monitors and IP reputation monitors, and the free plan gives two test credits. DMARC volume beyond the plan is billed per 100,000 messages. It tests and monitors but does not warm mailboxes.
Switch from MailReach if you want placement tests and DMARC reports under one subscription.
Our email deliverability tool guide puts GlockApps at 2 of 12; read why →
United States · Published
Mail Tester LLC of Dover, Delaware operates Mail-Tester. You send one message to a generated address and read a report covering the message, the server and the sending IP. The score comes from a stock SpamAssassin install, so it speaks for one filter. The free tier allows three tests per 24 hours, and results expire after seven days.
Switch from MailReach if you need a quick one-off check of a single email before sending.
Open the Mail-Tester profile, 4th of 12 in the email deliverability tool guide →
United States · Published
Folderly Inc. sells a family of products: Folderly for reputation, Inbox Insights for placement tests, Pulse for monitoring, and several DMARC tools. Inbox Insights has two free tests a month and a paid tier of 100. Each product carries its own plan, so a full replacement of MailReach's pair can mean buying more than one item.
Switch from MailReach if you want separate products for reputation, placement tests and DMARC.
#6 out of 12 email deliverability tool products: read the Folderly review →
Not stated by the vendor · Published
MXToolbox, Inc. names no country on the pages we read. Its free plan checks blocklists weekly for one domain. Delivery Center adds 30 inbox placement analyses a month, five domains and 500,000 messages of volume, and the Plus tier raises that to 100 analyses and 5,000,000 messages with SPF flattening. It describes monitoring, not warm-up.
Switch from MailReach if your problem is blocklists and DNS records rather than reputation building.
Read our review of MXToolbox (position 8 of 12 on the email deliverability tool list) →
United States · Published
Mailgun Optimize is the deliverability line inside Sinch Email and works with other email providers. The Starter plan lists 50 placement tests, plus spam trap and blocklist monitoring for one domain and one IP, with the first month free. Email previews belong to a separate product, Inspect, and extra placement tests are metered individually.
Switch from MailReach if you want placement tests and trap monitoring from an email infrastructure vendor.
More on Mailgun: ranked 10 of 12 in email deliverability tool →
United States · Published
Google's service is free to anyone with a Google or Workspace account, and it shows spam rate, reputation, authentication results and delivery errors. Data covers only mail sent to gmail.com and googlemail.com recipients, the domain must be verified through DNS, and low daily volume leaves dashboards empty. It cannot warm mailboxes or run placement tests.
Switch from MailReach if you want free Gmail-side reputation data and nothing else.
Google Postmaster Tools holds rank 9 among 12 entries in our email deliverability tool guide →
United States · Published
Foo Monk, LLC of Sheridan, Wyoming runs Instantly, a cold-email sending platform. Unlimited email accounts and warm-up arrive with outreach plans from Growth, metered by monthly emails and contacts. Light Speed and Enterprise add SISR, which assigns private servers and IP blocks. Spam testing alone is not sold, so it fits teams that also want the sender.
Switch from MailReach if you want to replace your outreach tool and your warm-up service together.
#11 out of 12 email deliverability tool products: read the Instantly review →
United States · On request
Litmus Software, Inc. of Cambridge, Massachusetts says its deliverability product has joined Validity Engage. Its pages cover placement by mailbox provider, SPF, DKIM and DMARC tracking, and previews across 100+ clients. No price or trial appears and every route leads to sales. Validity's terms set 12-month order forms that renew unless cancelled 60 days ahead.
Switch from MailReach if your team designs marketing email and wants previews with placement data.
Full verdict on Litmus, which sits at number 12 of 12 for email deliverability tool →
Warmbox: Plans cover one, three or six inboxes at 50, 250 and 500 emails a day, with every feature on every plan.
lemwarm: Warm-up is included in every lemlist plan, so no separate subscription is needed.
Google Postmaster Tools: Dashboards show spam rate and reputation for gmail.com recipients at no cost, once your volume is high enough.
Mail-Tester: Send one message to a generated address; three free tests per 24 hours, scored by SpamAssassin only.
GlockApps: One subscription holds test credits, DMARC volume and monitors, and the free plan includes two test credits.
MailReach does one job and keeps setup short. Warm-up and spam testing arrive together, it works with any SMTP provider including Gmail, Outlook, Zoho, Brevo and Amazon SES, and the vendor describes a pool of more than 30,000 inboxes that open, reply to and rescue your warm-up mail. Alerts go out through Slack or webhooks, and an API exists for both products. If you run a modest number of mailboxes and want testing with warming in one login, there is little reason to leave.
The pricing page lists test history and a deliverability report for each placement test. Save those reports, and note your current reputation score for each mailbox, so you have a baseline to compare against once a new tool has run for a few weeks.
The vendor advises continuing to warm between campaigns, and new domains need at least 14 days before sending. Overlap the old and new warm-up for a short period so the mailboxes keep activity going while you change tools.
Slack and webhook alerts, seed list rotation and the SPF, DKIM and DMARC checks need setting up again. Reconnect each mailbox and confirm the sending domain's records before you cancel.
The pricing page shows the All-In-One plan at 19.5 dollars per mailbox per month, with annual billing labelled as saving 20% and taxes excluded.
The calculator's example totals were not consistent with each other when we read it, so check the figure for your own mailbox count.
The pricing page we read lists no free trial or free plan. It advertises 20% off the first 30 days of warming your first mailbox, and it links to a free spam test and checker.
Yes, with some alternatives. GlockApps and Folderly's Inbox Insights both have free tiers of two tests, and Mail-Tester allows three free tests per 24 hours. MailReach also sells spam testing as its own plan or pay as you go.
lemwarm is included in every lemlist plan, and Instantly bundles unlimited email accounts and warm-up into outreach plans from Growth. Both mean you buy a sender alongside the warm-up.
Warmbox is run from Tallinn, Warmup Inbox from Bratislava and lemwarm from Paris, according to the vendors' own legal details. MailReach itself is published from Paris.
Google Postmaster Tools does, free of charge, but only for recipients at gmail.com and googlemail.com and only once volume is high enough to fill the dashboards.
Founder of The Knowledge Engineers and of 2 Steps Ahead, an AI search visibility agency. Editorially responsible for every page on this site; research and drafting are AI-assisted.
Sebastiaan Smits wrote and checked this page, most recently on 8 November 2026. See how we review.
