Postmark and Mailgun Email Deliverability Comparison

Postmark

Mailgun

In this comparison, the deliverability of Postmark and Mailgun 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
63.961 64.615	50.217 49.541	12.619 13.785	1.413 1.579

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 (%)
78.51 % 76.67 %	19.73 % 21.33 %	2.21 % 2.44 %

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	4804 5018	3757 3908	971 1019	105 110	78.21 % 77.88 %	20.21 % 20.31 %	2.19 % 2.19 %
Elektronics	4766 5054	3746 3920	946 1033	106 132	78.60 % 77.56 %	19.85 % 20.44 %	2.22 % 2.61 %
Entertainment	5025 4913	3920 3747	1009 1071	117 122	78.01 % 76.27 %	20.08 % 21.80 %	2.33 % 2.48 %
Cosmetics & Beauty	4806 4934	3784 3795	947 1024	99 120	78.73 % 76.92 %	19.70 % 20.75 %	2.06 % 2.43 %
Food & Drink	4939 4824	3846 3719	1009 1010	104 117	77.87 % 77.09 %	20.43 % 20.94 %	2.11 % 2.43 %
Home & Garden	4853 5089	3813 3914	939 1091	111 120	78.57 % 76.91 %	19.35 % 21.44 %	2.29 % 2.36 %
Finance	5124 5008	4152 4014	892 912	110 125	81.03 % 80.15 %	17.41 % 18.21 %	2.15 % 2.50 %
Health	4903 4944	4012 3899	783 953	108 118	81.83 % 78.86 %	15.97 % 19.28 %	2.20 % 2.39 %
Pets	4994 4996	3887 3764	1004 1123	115 127	77.83 % 75.34 %	20.10 % 22.48 %	2.30 % 2.54 %
Sport & Fitness	4948 4986	3871 3777	997 1088	106 128	78.23 % 75.75 %	20.15 % 21.82 %	2.14 % 2.57 %
Job & Career	4860 4807	3703 3565	1080 1142	109 115	76.19 % 74.16 %	22.22 % 23.76 %	2.24 % 2.39 %
Dating	4816 4864	3616 3522	1124 1233	106 121	75.08 % 72.41 %	23.34 % 25.35 %	2.20 % 2.49 %
Other	5123 5178	4110 3997	918 1086	117 124	80.23 % 77.19 %	17.92 % 20.97 %	2.28 % 2.39 %

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	4572 4746	3436 3504	1061 1141	95 114	75.15 % 73.83 %	23.21 % 24.04 %	2.08 % 2.40 %
Outlook Mail	4560 4765	3490 3571	972 1097	105 123	76.54 % 74.94 %	21.32 % 23.02 %	2.30 % 2.58 %
Yahoo Mail	4647 4672	3595 3514	968 1036	104 114	77.36 % 75.21 %	20.83 % 22.17 %	2.24 % 2.44 %
AOL Mail	4668 4455	3635 3409	949 960	100 105	77.87 % 76.52 %	20.33 % 21.55 %	2.14 % 2.36 %
Mail.com	4676 4524	3755 3511	833 911	103 116	80.30 % 77.61 %	17.81 % 20.14 %	2.20 % 2.56 %
Yandex Mail	4591 4871	3565 3709	944 1075	102 114	77.65 % 76.14 %	20.56 % 22.07 %	2.22 % 2.34 %
GMX Mail	4634 4538	3552 3415	994 1046	110 115	76.65 % 75.25 %	21.45 % 23.05 %	2.37 % 2.53 %
Zoho Mail	4714 4621	3774 3595	866 945	102 120	80.06 % 77.80 %	18.37 % 20.45 %	2.16 % 2.60 %
ProtonMail	4452 4697	3567 3679	824 926	93 110	80.12 % 78.33 %	18.51 % 19.71 %	2.09 % 2.34 %
Custom Mail	4631 4723	3783 3755	756 877	108 103	81.69 % 79.50 %	16.32 % 18.57 %	2.33 % 2.18 %
iCloud Mail	4587 4663	3469 3394	1035 1198	102 117	75.63 % 72.79 %	22.56 % 25.69 %	2.22 % 2.51 %
Tuta	4657 4639	3750 3646	833 904	106 113	80.52 % 78.59 %	17.89 % 19.49 %	2.28 % 2.44 %
Juno.com	4828 4641	3877 3630	887 909	105 124	80.30 % 78.22 %	18.37 % 19.59 %	2.17 % 2.67 %
Mailfence	3744 4060	2969 3209	697 760	78 91	79.30 % 79.04 %	18.62 % 18.72 %	2.08 % 2.24 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.