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
136.673 136.976	112.088 112.364	18.804 18.887	4.589 4.927

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 (%)
82.01 % 82.03 %	13.76 % 13.79 %	3.36 % 3.60 %

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	10319 10570	8666 8833	1246 1298	314 374	83.98 % 83.57 %	12.07 % 12.28 %	3.04 % 3.54 %
Elektronics	10745 10610	8904 8819	1395 1390	341 350	82.87 % 83.12 %	12.98 % 13.10 %	3.17 % 3.30 %
Entertainment	10652 10467	8724 8578	1469 1464	356 364	81.90 % 81.95 %	13.79 % 13.99 %	3.34 % 3.48 %
Cosmetics & Beauty	10570 10479	8649 8614	1455 1470	365 357	81.83 % 82.20 %	13.77 % 14.03 %	3.45 % 3.41 %
Food & Drink	10527 10375	8817 8725	1318 1277	321 316	83.76 % 84.10 %	12.52 % 12.31 %	3.05 % 3.05 %
Home & Garden	10450 10599	8720 8935	1297 1279	345 330	83.44 % 84.30 %	12.41 % 12.07 %	3.30 % 3.11 %
Finance	10332 10560	8300 8433	1584 1644	384 441	80.33 % 79.86 %	15.33 % 15.57 %	3.72 % 4.18 %
Health	10370 10405	8403 8412	1500 1507	343 407	81.03 % 80.85 %	14.46 % 14.48 %	3.31 % 3.91 %
Pets	10462 10581	8710 8800	1363 1380	296 348	83.25 % 83.17 %	13.03 % 13.04 %	2.83 % 3.29 %
Sport & Fitness	10618 10601	8593 8607	1568 1544	376 388	80.93 % 81.19 %	14.77 % 14.56 %	3.54 % 3.66 %
Job & Career	10594 10684	8436 8520	1622 1642	428 441	79.63 % 79.75 %	15.31 % 15.37 %	4.04 % 4.13 %
Dating	10360 10500	8300 8371	1589 1596	390 448	80.12 % 79.72 %	15.34 % 15.20 %	3.76 % 4.27 %
Other	10674 10545	8866 8717	1398 1396	330 363	83.06 % 82.66 %	13.10 % 13.24 %	3.09 % 3.44 %

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	10631 10511	8243 8156	1843 1810	458 485	77.54 % 77.59 %	17.34 % 17.22 %	4.31 % 4.61 %
Outlook Mail	10751 10428	8621 8368	1594 1576	416 413	80.19 % 80.25 %	14.83 % 15.11 %	3.87 % 3.96 %
Yahoo Mail	10311 10503	8393 8550	1454 1508	358 388	81.40 % 81.41 %	14.10 % 14.36 %	3.47 % 3.69 %
AOL Mail	10509 10562	8583 8605	1474 1474	347 398	81.67 % 81.47 %	14.03 % 13.96 %	3.30 % 3.77 %
Mail.com	10553 10425	8705 8589	1399 1384	353 366	82.49 % 82.39 %	13.26 % 13.28 %	3.35 % 3.51 %
Yandex Mail	10553 10371	8515 8368	1579 1553	387 399	80.69 % 80.69 %	14.96 % 14.97 %	3.67 % 3.85 %
GMX Mail	10395 10552	8708 8797	1306 1325	293 355	83.77 % 83.37 %	12.56 % 12.56 %	2.82 % 3.36 %
Zoho Mail	10626 10651	8853 8896	1355 1338	326 339	83.31 % 83.52 %	12.75 % 12.56 %	3.07 % 3.18 %
ProtonMail	10615 10528	8923 8875	1280 1265	321 340	84.06 % 84.30 %	12.06 % 12.02 %	3.02 % 3.23 %
Custom Mail	10277 10730	8652 9060	1215 1310	301 337	84.19 % 84.44 %	11.82 % 12.21 %	2.93 % 3.14 %
iCloud Mail	10362 10502	8159 8295	1705 1722	413 428	78.74 % 78.98 %	16.45 % 16.40 %	3.99 % 4.08 %
Tuta	10686 10595	8928 8863	1363 1336	332 341	83.55 % 83.65 %	12.76 % 12.61 %	3.11 % 3.22 %
Juno.com	10404 10618	8805 8942	1237 1286	284 338	84.63 % 84.22 %	11.89 % 12.11 %	2.73 % 3.18 %

Compare Mailgun with other providers

Compare the email deliverability of Mailgun with other providers.