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
179.524 179.720	145.048 146.263	27.936 27.085	5.638 5.862

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 (%)
80.80 % 81.38 %	15.56 % 15.07 %	3.14 % 3.26 %

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	13706 13771	11304 11368	1937 1924	391 443	82.47 % 82.55 %	14.13 % 13.97 %	2.85 % 3.22 %
Elektronics	14123 13793	11527 11361	2090 1994	432 419	81.62 % 82.37 %	14.80 % 14.46 %	3.06 % 3.04 %
Entertainment	13978 13904	11284 11280	2180 2142	438 442	80.73 % 81.13 %	15.60 % 15.41 %	3.13 % 3.18 %
Cosmetics & Beauty	13894 13661	11216 11141	2137 2080	445 426	80.73 % 81.55 %	15.38 % 15.23 %	3.20 % 3.12 %
Food & Drink	13755 13631	11310 11298	1994 1914	402 382	82.22 % 82.88 %	14.50 % 14.04 %	2.92 % 2.80 %
Home & Garden	13815 13810	11299 11491	2040 1872	424 402	81.79 % 83.21 %	14.77 % 13.56 %	3.07 % 2.91 %
Finance	13596 13896	10930 11156	2180 2213	465 515	80.39 % 80.28 %	16.03 % 15.93 %	3.42 % 3.71 %
Health	13665 13735	11006 11152	2141 2028	420 476	80.54 % 81.19 %	15.67 % 14.77 %	3.07 % 3.47 %
Pets	13725 13907	11184 11417	2087 2026	379 423	81.49 % 82.10 %	15.21 % 14.57 %	2.76 % 3.04 %
Sport & Fitness	13909 13962	11097 11255	2282 2211	456 460	79.78 % 80.61 %	16.41 % 15.84 %	3.28 % 3.29 %
Job & Career	13733 13989	10761 11074	2378 2350	501 516	78.36 % 79.16 %	17.32 % 16.80 %	3.65 % 3.69 %
Dating	13502 13712	10593 10807	2371 2331	469 519	78.46 % 78.81 %	17.56 % 17.00 %	3.47 % 3.79 %
Other	14123 13949	11537 11463	2119 2000	416 439	81.69 % 82.18 %	15.00 % 14.34 %	2.95 % 3.15 %

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	13842 13684	10612 10559	2618 2533	538 552	76.67 % 77.16 %	18.91 % 18.51 %	3.89 % 4.03 %
Outlook Mail	13884 13512	10981 10759	2313 2207	496 482	79.09 % 79.63 %	16.66 % 16.33 %	3.57 % 3.57 %
Yahoo Mail	13397 13609	10721 10973	2126 2145	436 454	80.03 % 80.63 %	15.87 % 15.76 %	3.25 % 3.34 %
AOL Mail	13431 13641	10826 11026	2102 2083	417 463	80.60 % 80.83 %	15.65 % 15.27 %	3.10 % 3.39 %
Mail.com	13560 13545	11056 11116	1993 1922	429 436	81.53 % 82.07 %	14.70 % 14.19 %	3.16 % 3.22 %
Yandex Mail	13731 13459	10954 10814	2273 2148	459 466	79.78 % 80.35 %	16.55 % 15.96 %	3.34 % 3.46 %
GMX Mail	13521 13715	11080 11253	2022 1976	369 433	81.95 % 82.05 %	14.95 % 14.41 %	2.73 % 3.16 %
Zoho Mail	13701 13821	11238 11472	2004 1891	406 408	82.02 % 83.00 %	14.63 % 13.68 %	2.96 % 2.95 %
ProtonMail	13634 13541	11280 11309	1889 1813	392 403	82.73 % 83.52 %	13.86 % 13.39 %	2.88 % 2.98 %
Custom Mail	13474 13810	11193 11592	1809 1809	375 402	83.07 % 83.94 %	13.43 % 13.10 %	2.78 % 2.91 %
iCloud Mail	13563 13628	10509 10683	2521 2412	494 495	77.48 % 78.39 %	18.59 % 17.70 %	3.64 % 3.63 %
Tuta	13796 13685	11383 11374	1968 1878	406 410	82.51 % 83.11 %	14.27 % 13.72 %	2.94 % 3.00 %
Juno.com	13522 13785	11250 11517	1850 1850	366 407	83.20 % 83.55 %	13.68 % 13.42 %	2.71 % 2.95 %
Mailfence	2468 2285	1965 1816	448 418	55 51	79.62 % 79.47 %	18.15 % 18.29 %	2.23 % 2.23 %

Compare Mailgun with other providers

Compare the email deliverability of Mailgun with other providers.