Postmark and MailChimp Email Deliverability Comparison

Postmark

MailChimp

In this comparison, the deliverability of Postmark and MailChimp 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 MailChimp.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
63.961 65.267	50.217 51.137	12.619 13.071	1.413 1.361

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 MailChimp in this comparison.

Inbox (%)	Spam (%)	Lost (%)
78.51 % 78.35 %	19.73 % 20.03 %	2.21 % 2.09 %

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 4987	3757 3871	971 1037	105 101	78.21 % 77.62 %	20.21 % 20.79 %	2.19 % 2.03 %
Elektronics	4766 4907	3746 3871	946 970	106 94	78.60 % 78.89 %	19.85 % 19.77 %	2.22 % 1.92 %
Entertainment	5025 5288	3920 4105	1009 1108	117 111	78.01 % 77.63 %	20.08 % 20.95 %	2.33 % 2.10 %
Cosmetics & Beauty	4806 5049	3784 3985	947 967	99 114	78.73 % 78.93 %	19.70 % 19.15 %	2.06 % 2.26 %
Food & Drink	4939 5265	3846 4089	1009 1079	104 121	77.87 % 77.66 %	20.43 % 20.49 %	2.11 % 2.30 %
Home & Garden	4853 4715	3813 3648	939 985	111 102	78.57 % 77.37 %	19.35 % 20.89 %	2.29 % 2.16 %
Finance	5124 5020	4152 4070	892 868	110 98	81.03 % 81.08 %	17.41 % 17.29 %	2.15 % 1.95 %
Health	4903 5008	4012 4086	783 840	108 103	81.83 % 81.59 %	15.97 % 16.77 %	2.20 % 2.06 %
Pets	4994 4928	3887 3860	1004 989	115 105	77.83 % 78.33 %	20.10 % 20.07 %	2.30 % 2.13 %
Sport & Fitness	4948 5039	3871 3930	997 1033	106 103	78.23 % 77.99 %	20.15 % 20.50 %	2.14 % 2.04 %
Job & Career	4860 4989	3703 3816	1080 1090	109 104	76.19 % 76.49 %	22.22 % 21.85 %	2.24 % 2.08 %
Dating	4816 4949	3616 3721	1124 1147	106 99	75.08 % 75.19 %	23.34 % 23.18 %	2.20 % 2.00 %
Other	5123 5123	4110 4085	918 958	117 106	80.23 % 79.74 %	17.92 % 18.70 %	2.28 % 2.07 %

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 MailChimp.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	4572 4801	3436 3618	1061 1136	95 87	75.15 % 75.36 %	23.21 % 23.66 %	2.08 % 1.81 %
Outlook Mail	4560 4589	3490 3525	972 997	105 89	76.54 % 76.81 %	21.32 % 21.73 %	2.30 % 1.94 %
Yahoo Mail	4647 4637	3595 3550	968 970	104 108	77.36 % 76.56 %	20.83 % 20.92 %	2.24 % 2.33 %
AOL Mail	4668 4887	3635 3788	949 1014	100 103	77.87 % 77.51 %	20.33 % 20.75 %	2.14 % 2.11 %
Mail.com	4676 4789	3755 3814	833 902	103 104	80.30 % 79.64 %	17.81 % 18.83 %	2.20 % 2.17 %
Yandex Mail	4591 4681	3565 3641	944 958	102 105	77.65 % 77.78 %	20.56 % 20.47 %	2.22 % 2.24 %
GMX Mail	4634 4864	3552 3723	994 1076	110 93	76.65 % 76.54 %	21.45 % 22.12 %	2.37 % 1.91 %
Zoho Mail	4714 4722	3774 3765	866 890	102 108	80.06 % 79.73 %	18.37 % 18.85 %	2.16 % 2.29 %
ProtonMail	4452 4729	3567 3786	824 870	93 94	80.12 % 80.06 %	18.51 % 18.40 %	2.09 % 1.99 %
Custom Mail	4631 4626	3783 3781	756 770	108 87	81.69 % 81.73 %	16.32 % 16.65 %	2.33 % 1.88 %
iCloud Mail	4587 4499	3469 3371	1035 1073	102 89	75.63 % 74.93 %	22.56 % 23.85 %	2.22 % 1.98 %
Tuta	4657 4741	3750 3807	833 856	106 103	80.52 % 80.30 %	17.89 % 18.06 %	2.28 % 2.17 %
Juno.com	4828 4741	3877 3812	887 842	105 103	80.30 % 80.40 %	18.37 % 17.76 %	2.17 % 2.17 %
Mailfence	3744 3961	2969 3156	697 717	78 88	79.30 % 79.68 %	18.62 % 18.10 %	2.08 % 2.22 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.