Bouncer
Email list verification on pay-as-you-go or monthly credits that never expire, plus a separate deliverability-testing kit
$8 for 1,000 credits Read review →
Email Deliverability Tools
Email verification, inbox warm-up and inbox placement testing tools that keep mail out of spam. Every score comes from a documentation-and-pricing audit; tools we partner with are listed first.
Want our ranked picks with the catch for each? Read Best Email Deliverability and Inbox Warm-up Tools in 2026 →
Need the sending tool itself? Compare cold email software: 
Saleshandy 
Instantly 
lemlist All Cold Email Software →
Saleshandy Instantly lemlist All Cold Email Software → Sending newsletters to your own list? Compare email marketing software: 
beehiiv 
Moosend 
iContact All Email Marketing Software →
beehiiv Moosend iContact All Email Marketing Software → Independent review. If you buy through links on this page we may earn a commission, at no extra cost to you. Tools we partner with are listed first, but that never changes a score — how we test.
| Tool | Best for | Price from | Free plan | Score | ||
|---|---|---|---|---|---|---|
| 1 | Bouncer 10% off | Teams that want to verify a list before sending, either as one-off credit packs or a monthly plan, and who also want blacklist and DMARC testing available from the same vendor | $8 for 1,000 credits | No | 4.4/5 | Visit |
| 2 | Teams already running a sender, Instantly, Smartlead, Saleshandy or lemlist among them, who want a dedicated warmup and deliverability layer on top, not a replacement for sequencing | $49/mo | No | 4.1/5 | Visit | |
| 3 | Teams warming up a new domain or inbox who want to see the real price before signing up, not after a demo call | $20/mo | No | 3.9/5 | Visit | |
| 4 | Teams that want to see where their mail actually lands and keep an eye on DMARC reports and blacklist status over time, and who will read the pricing and upgrade complaints first | $59/mo | Yes | 3.8/5 | Visit |
All reviews in Email Deliverability Tools
Warmy.io
Mailbox warmup and deliverability monitoring that pairs with your sender, not a cold email tool on its own
$49/mo Read review →
MailReach
Per-mailbox inbox warm-up and spam testing with published pricing, no sales call required
$20/mo Read review →
GlockApps
Inbox placement testing and DMARC monitoring, with the only genuine standing free plan in this category
Free tier
$59/mo Read review →
Deals & price changes
Price changes and deals in email deliverability tools
One short email when a tool in this category changes its price or gets a verified deal. At most once a week.