Mailgun and Postmark Email Deliverability Comparison

In this comparison, the deliverability of Mailgun and Postmark is compared in detail. All available data, taking the filters into account, is used for the comparison.

Email deliverability

This comparison compares the numbers for sent emails, you can also see in which folder the emails at the email service provider ended up and how many emails were lost on the way. The numbers look better for Postmark than for Mailgun.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
147.018 147.015	120.269 120.909	20.997 20.423	4.850 5.173

Email deliverability rates

The following table shows the most important deliverability rates (in percent) for the compared providers. The higher the inbox rate and the lower the spam rate, the better. Postmark beats Mailgun in this comparison.

Inbox (%)	Spam (%)	Lost (%)
81.81 % 82.24 %	14.28 % 13.89 %	3.30 % 3.52 %

Email deliverability by category

This comparison compares the deliverability taking into account the category or the industry. The deliverability can vary greatly depending on the industry. In this comparison, Postmark is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	11146 11277	9325 9443	1411 1406	336 392	83.66 % 83.74 %	12.66 % 12.47 %	3.01 % 3.48 %
Elektronics	11588 11316	9575 9424	1576 1504	363 369	82.63 % 83.28 %	13.60 % 13.29 %	3.13 % 3.26 %
Entertainment	11484 11234	9388 9229	1642 1581	378 384	81.75 % 82.15 %	14.30 % 14.07 %	3.29 % 3.42 %
Cosmetics & Beauty	11348 11222	9260 9250	1606 1584	386 374	81.60 % 82.43 %	14.15 % 14.12 %	3.40 % 3.33 %
Food & Drink	11297 11120	9432 9368	1480 1383	336 332	83.49 % 84.24 %	13.10 % 12.44 %	2.97 % 2.99 %
Home & Garden	11225 11374	9338 9586	1469 1393	366 350	83.19 % 84.28 %	13.09 % 12.25 %	3.26 % 3.08 %
Finance	11110 11390	8916 9148	1770 1768	403 462	80.25 % 80.32 %	15.93 % 15.52 %	3.63 % 4.06 %
Health	11143 11190	9015 9063	1671 1621	359 427	80.90 % 80.99 %	15.00 % 14.49 %	3.22 % 3.82 %
Pets	11190 11339	9294 9439	1508 1493	313 366	83.06 % 83.24 %	13.48 % 13.17 %	2.80 % 3.23 %
Sport & Fitness	11415 11448	9211 9331	1734 1674	396 407	80.69 % 81.51 %	15.19 % 14.62 %	3.47 % 3.56 %
Job & Career	11418 11464	9079 9177	1796 1777	450 461	79.51 % 80.05 %	15.73 % 15.50 %	3.94 % 4.02 %
Dating	11134 11236	8901 9005	1754 1710	410 466	79.94 % 80.14 %	15.75 % 15.22 %	3.68 % 4.15 %
Other	11520 11405	9535 9446	1580 1529	354 383	82.77 % 82.82 %	13.72 % 13.41 %	3.07 % 3.36 %

Email deliverability by email service provider

Finally, the following table compares the deliverability taking into account the email service provider. Similar to the industry, also the email service provider can affect the email deliverability in both directions – positive or negative. In this comparison, Postmark is better than Mailgun.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	11410 11316	8852 8843	2006 1929	478 504	77.58 % 78.15 %	17.58 % 17.05 %	4.19 % 4.45 %
Outlook Mail	11537 11176	9245 8989	1762 1692	436 431	80.13 % 80.43 %	15.27 % 15.14 %	3.78 % 3.86 %
Yahoo Mail	11116 11164	9021 9116	1602 1606	379 405	81.15 % 81.66 %	14.41 % 14.39 %	3.41 % 3.63 %
AOL Mail	11233 11334	9160 9266	1621 1583	366 416	81.55 % 81.75 %	14.43 % 13.97 %	3.26 % 3.67 %
Mail.com	11347 11147	9327 9200	1565 1496	373 380	82.20 % 82.53 %	13.79 % 13.42 %	3.29 % 3.41 %
Yandex Mail	11391 11157	9175 9033	1763 1672	408 421	80.55 % 80.96 %	15.48 % 14.99 %	3.58 % 3.77 %
GMX Mail	11195 11304	9349 9436	1483 1439	313 376	83.51 % 83.47 %	13.25 % 12.73 %	2.80 % 3.33 %
Zoho Mail	11426 11469	9485 9590	1542 1471	346 358	83.01 % 83.62 %	13.50 % 12.83 %	3.03 % 3.12 %
ProtonMail	11352 11276	9506 9512	1434 1389	339 359	83.74 % 84.36 %	12.63 % 12.32 %	2.99 % 3.18 %
Custom Mail	11100 11489	9300 9705	1381 1423	322 354	83.78 % 84.47 %	12.44 % 12.39 %	2.90 % 3.08 %
iCloud Mail	11208 11321	8830 8998	1906 1836	433 449	78.78 % 79.48 %	17.01 % 16.22 %	3.86 % 3.97 %
Tuta	11491 11402	9577 9558	1523 1461	352 360	83.34 % 83.83 %	13.25 % 12.81 %	3.06 % 3.16 %
Juno.com	11212 11460	9442 9663	1409 1426	305 360	84.21 % 84.32 %	12.57 % 12.44 %	2.72 % 3.14 %

Compare Mailgun with other providers

Compare the email deliverability of Mailgun with other providers.