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
61.832 62.077	51.727 50.973	7.939 8.694	2.166 2.410

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 (%)
83.66 % 82.11 %	12.84 % 14.01 %	3.50 % 3.88 %

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	4767 4830	4106 4056	518 592	143 182	86.13 % 83.98 %	10.87 % 12.26 %	3.00 % 3.77 %
Elektronics	4874 4784	4152 3986	580 631	142 167	85.19 % 83.32 %	11.90 % 13.19 %	2.91 % 3.49 %
Entertainment	4794 4674	3993 3825	632 665	169 184	83.29 % 81.84 %	13.18 % 14.23 %	3.53 % 3.94 %
Cosmetics & Beauty	4784 4777	3991 3902	613 679	180 196	83.42 % 81.68 %	12.81 % 14.21 %	3.76 % 4.10 %
Food & Drink	4759 4630	4089 3945	519 545	151 140	85.92 % 85.21 %	10.91 % 11.77 %	3.17 % 3.02 %
Home & Garden	4617 4818	3955 4086	508 570	154 162	85.66 % 84.81 %	11.00 % 11.83 %	3.34 % 3.36 %
Finance	4732 4847	3841 3831	700 783	191 233	81.17 % 79.04 %	14.79 % 16.15 %	4.04 % 4.81 %
Health	4670 4745	3855 3829	651 712	164 204	82.55 % 80.70 %	13.94 % 15.01 %	3.51 % 4.30 %
Pets	4823 4821	4101 4013	571 627	151 181	85.03 % 83.24 %	11.84 % 13.01 %	3.13 % 3.75 %
Sport & Fitness	4744 4709	3918 3824	665 710	161 175	82.59 % 81.21 %	14.02 % 15.08 %	3.39 % 3.72 %
Job & Career	4768 4745	3842 3782	710 759	216 204	80.58 % 79.70 %	14.89 % 16.00 %	4.53 % 4.30 %
Dating	4695 4746	3808 3771	701 765	186 210	81.11 % 79.46 %	14.93 % 16.12 %	3.96 % 4.42 %
Other	4805 4951	4076 4123	571 656	158 172	84.83 % 83.28 %	11.88 % 13.25 %	3.29 % 3.47 %

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	4684 4728	3649 3610	821 871	214 247	77.90 % 76.35 %	17.53 % 18.42 %	4.57 % 5.22 %
Outlook Mail	4710 4561	3851 3660	670 713	189 188	81.76 % 80.25 %	14.23 % 15.63 %	4.01 % 4.12 %
Yahoo Mail	4666 4764	3887 3877	618 699	161 188	83.30 % 81.38 %	13.24 % 14.67 %	3.45 % 3.95 %
AOL Mail	4831 4865	4015 3963	642 705	174 197	83.11 % 81.46 %	13.29 % 14.49 %	3.60 % 4.05 %
Mail.com	4833 4799	4080 3957	597 651	156 191	84.42 % 82.45 %	12.35 % 13.57 %	3.23 % 3.98 %
Yandex Mail	4769 4676	3895 3761	684 724	190 191	81.67 % 80.43 %	14.34 % 15.48 %	3.98 % 4.08 %
GMX Mail	4732 4739	4054 3982	535 585	143 172	85.67 % 84.03 %	11.31 % 12.34 %	3.02 % 3.63 %
Zoho Mail	4861 4909	4152 4131	562 614	147 164	85.41 % 84.15 %	11.56 % 12.51 %	3.02 % 3.34 %
ProtonMail	4769 4740	4106 4028	507 546	156 166	86.10 % 84.98 %	10.63 % 11.52 %	3.27 % 3.50 %
Custom Mail	4632 4800	4010 4082	483 561	139 157	86.57 % 85.04 %	10.43 % 11.69 %	3.00 % 3.27 %
iCloud Mail	4709 4793	3736 3721	768 844	205 228	79.34 % 77.63 %	16.31 % 17.61 %	4.35 % 4.76 %
Tuta	4827 4930	4128 4153	547 616	152 161	85.52 % 84.24 %	11.33 % 12.49 %	3.15 % 3.27 %
Juno.com	4809 4773	4164 4048	505 565	140 160	86.59 % 84.81 %	10.50 % 11.84 %	2.91 % 3.35 %

Compare Mailgun with other providers

Compare the email deliverability of Mailgun with other providers.