MxToolbox Inbox Placement vs Postmark
MxToolbox Inbox Placement
mxtoolbox.com
Postmark
postmarkapp.comSide by side
| Figure | MxToolbox Inbox Placement | Postmark |
|---|---|---|
| Price from | $129/mo | $5/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 5 | 8 |
| Spec score · Email Deliverability Software | 8.7 (#5) | 8.7 (#6) |
| Support | Paid-plan features include onboarding support and an account walkthrough with an expert support team. | Postmark offers support by email, live chat, and one-on-one calls and reports a 95% customer happiness rating. |
| What it does | Inbox Placement reports whether messages sent to major mailbox providers reach the inbox, spam/junk, another category, or fail delivery. | Postmark delivers and tracks application email as a replacement for SMTP or Sendmail. |
Plans
MxToolbox Inbox Placement
- FreeFree
- Delivery Center$129 a month
- Delivery Center$129 a month
- Delivery Center Plus$399 a month
- Delivery Center Plus$399 a month
Postmark
- FreeFree
- Basic$15 a month
- Pro$16.50 a month
- Platform$18 a month
- Custom activity retention$5 a month
- DMARC monitoring$14 a month
- Dedicated IP$50 a month
- High-volume plansPriced on request
In their own words
MxToolbox Inbox Placement
MxToolbox Inbox Placement has no write-up on Specifiction yet; its figures are above.
Postmark
Postmark delivers and tracks application email as an alternative to SMTP or Sendmail. It separates transactional and broadcast messages into different Message Streams and IP infrastructure. Developers can send through REST API, SMTP, or multi-region SMTP routing, with official libraries for Node.js, Python, Rails, Ruby, PHP, and.NET. Inbound messages can be converted to JSON and sent to a webhook URL. Tracking includes delivery, bounces, spam, opens, and links, with event webhooks. Editable responsive templates cover transactional messages such as password resets, receipts, and invitations. The free Developer plan costs nothing, provides 100 emails per month, permits no overages, and does not expire. Basic starts at $15 a month for 10,000 emails per month; extra emails cost $1.80 per 1,000 and are calculated at the end of the billing cycle. Unused emails do not roll over. Postmark lists API and web access. Its iOS app was sunset in June 2025 and is no longer supported.