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 Mailgun than for Postmark.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
44.017 44.308	36.811 36.117	5.653 6.404	1.553 1.787

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. Mailgun beats Postmark in this comparison.

Inbox (%)	Spam (%)	Lost (%)
83.63 % 81.51 %	12.84 % 14.45 %	3.53 % 4.03 %

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, Mailgun is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	3375 3433	2897 2867	370 434	108 132	85.84 % 83.51 %	10.96 % 12.64 %	3.20 % 3.85 %
Elektronics	3485 3414	2961 2823	420 466	104 125	84.96 % 82.69 %	12.05 % 13.65 %	2.98 % 3.66 %
Entertainment	3422 3342	2847 2714	448 492	127 136	83.20 % 81.21 %	13.09 % 14.72 %	3.71 % 4.07 %
Cosmetics & Beauty	3408 3358	2839 2715	438 496	131 147	83.30 % 80.85 %	12.85 % 14.77 %	3.84 % 4.38 %
Food & Drink	3326 3326	2871 2816	358 407	97 103	86.32 % 84.67 %	10.76 % 12.24 %	2.92 % 3.10 %
Home & Garden	3289 3410	2817 2873	361 419	111 118	85.65 % 84.25 %	10.98 % 12.29 %	3.37 % 3.46 %
Finance	3340 3489	2716 2723	492 579	132 187	81.32 % 78.05 %	14.73 % 16.60 %	3.95 % 5.36 %
Health	3298 3338	2723 2671	460 516	115 151	82.57 % 80.02 %	13.95 % 15.46 %	3.49 % 4.52 %
Pets	3447 3502	2919 2892	412 472	116 138	84.68 % 82.58 %	11.95 % 13.48 %	3.37 % 3.94 %
Sport & Fitness	3432 3373	2840 2723	478 521	114 129	82.75 % 80.73 %	13.93 % 15.45 %	3.32 % 3.82 %
Job & Career	3383 3392	2723 2684	505 555	155 153	80.49 % 79.13 %	14.93 % 16.36 %	4.58 % 4.51 %
Dating	3357 3355	2722 2663	500 554	135 138	81.08 % 79.37 %	14.89 % 16.51 %	4.02 % 4.11 %
Other	3455 3576	2936 2953	411 493	108 130	84.98 % 82.58 %	11.90 % 13.79 %	3.13 % 3.64 %

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, Mailgun is better than Postmark.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	3389 3380	2640 2556	592 635	157 189	77.90 % 75.62 %	17.47 % 18.79 %	4.63 % 5.59 %
Outlook Mail	3331 3267	2726 2603	471 527	134 137	81.84 % 79.68 %	14.14 % 16.13 %	4.02 % 4.19 %
Yahoo Mail	3275 3432	2722 2776	433 518	120 138	83.11 % 80.89 %	13.22 % 15.09 %	3.66 % 4.02 %
AOL Mail	3411 3495	2835 2818	455 522	121 155	83.11 % 80.63 %	13.34 % 14.94 %	3.55 % 4.43 %
Mail.com	3478 3428	2931 2808	431 481	116 139	84.27 % 81.91 %	12.39 % 14.03 %	3.34 % 4.05 %
Yandex Mail	3358 3340	2749 2660	482 534	127 146	81.86 % 79.64 %	14.35 % 15.99 %	3.78 % 4.37 %
GMX Mail	3384 3391	2890 2828	385 430	109 133	85.40 % 83.40 %	11.38 % 12.68 %	3.22 % 3.92 %
Zoho Mail	3471 3521	2971 2938	404 457	96 126	85.59 % 83.44 %	11.64 % 12.98 %	2.77 % 3.58 %
ProtonMail	3488 3357	2996 2836	370 398	122 123	85.89 % 84.48 %	10.61 % 11.86 %	3.50 % 3.66 %
Custom Mail	3336 3365	2876 2852	349 408	111 105	86.21 % 84.75 %	10.46 % 12.12 %	3.33 % 3.12 %
iCloud Mail	3353 3409	2661 2622	548 619	144 168	79.36 % 76.91 %	16.34 % 18.16 %	4.29 % 4.93 %
Tuta	3362 3543	2886 2971	379 456	97 116	85.84 % 83.86 %	11.27 % 12.87 %	2.89 % 3.27 %
Juno.com	3381 3380	2928 2849	354 419	99 112	86.60 % 84.29 %	10.47 % 12.40 %	2.93 % 3.31 %

Compare Mailgun with other providers

Compare the email deliverability of Mailgun with other providers.