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
65.027 66.170	50.616 51.279	13.085 13.498	1.326 1.393

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 (%)
77.84 % 77.50 %	20.12 % 20.40 %	2.04 % 2.11 %

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	4970 5120	3843 3951	1033 1056	94 113	77.32 % 77.17 %	20.78 % 20.63 %	1.89 % 2.21 %
Elektronics	4862 4901	3785 3847	983 956	94 98	77.85 % 78.49 %	20.22 % 19.51 %	1.93 % 2.00 %
Entertainment	4997 5184	3877 3990	1015 1082	105 112	77.59 % 76.97 %	20.31 % 20.87 %	2.10 % 2.16 %
Cosmetics & Beauty	4939 5182	3869 4025	976 1048	94 109	78.34 % 77.67 %	19.76 % 20.22 %	1.90 % 2.10 %
Food & Drink	5061 5293	3882 4058	1078 1117	101 118	76.70 % 76.67 %	21.30 % 21.10 %	2.00 % 2.23 %
Home & Garden	5067 4882	3946 3759	1012 1017	109 106	77.88 % 77.00 %	19.97 % 20.83 %	2.15 % 2.17 %
Finance	5190 5029	4199 4060	884 872	107 97	80.91 % 80.73 %	17.03 % 17.34 %	2.06 % 1.93 %
Health	4964 5101	4038 4143	818 850	108 108	81.35 % 81.22 %	16.48 % 16.66 %	2.18 % 2.12 %
Pets	5115 4972	3960 3836	1051 1029	104 107	77.42 % 77.15 %	20.55 % 20.70 %	2.03 % 2.15 %
Sport & Fitness	4997 5219	3891 3994	1008 1119	98 106	77.87 % 76.53 %	20.17 % 21.44 %	1.96 % 2.03 %
Job & Career	4970 5106	3720 3866	1149 1133	101 107	74.85 % 75.71 %	23.12 % 22.19 %	2.03 % 2.10 %
Dating	4915 5048	3632 3711	1185 1239	98 98	73.90 % 73.51 %	24.11 % 24.54 %	1.99 % 1.94 %
Other	4980 5133	3974 4039	893 980	113 114	79.80 % 78.69 %	17.93 % 19.09 %	2.27 % 2.22 %

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	4525 4838	3346 3557	1094 1183	85 98	73.94 % 73.52 %	24.18 % 24.45 %	1.88 % 2.03 %
Outlook Mail	4546 4761	3464 3595	993 1070	89 96	76.20 % 75.51 %	21.84 % 22.47 %	1.96 % 2.02 %
Yahoo Mail	4730 4634	3610 3501	1018 1024	102 109	76.32 % 75.55 %	21.52 % 22.10 %	2.16 % 2.35 %
AOL Mail	4744 4734	3664 3611	980 1018	100 105	77.23 % 76.28 %	20.66 % 21.50 %	2.11 % 2.22 %
Mail.com	4897 4888	3912 3873	888 908	97 107	79.89 % 79.23 %	18.13 % 18.58 %	1.98 % 2.19 %
Yandex Mail	4667 4597	3569 3554	1003 945	95 98	76.47 % 77.31 %	21.49 % 20.56 %	2.04 % 2.13 %
GMX Mail	4666 4857	3499 3686	1066 1076	101 95	74.99 % 75.89 %	22.85 % 22.15 %	2.16 % 1.96 %
Zoho Mail	4684 4694	3686 3687	906 902	92 105	78.69 % 78.55 %	19.34 % 19.22 %	1.96 % 2.24 %
ProtonMail	4568 4821	3673 3833	810 890	85 98	80.41 % 79.51 %	17.73 % 18.46 %	1.86 % 2.03 %
Custom Mail	4630 4634	3781 3781	744 764	105 89	81.66 % 81.59 %	16.07 % 16.49 %	2.27 % 1.92 %
iCloud Mail	4587 4504	3396 3317	1093 1099	98 88	74.04 % 73.65 %	23.83 % 24.40 %	2.14 % 1.95 %
Tuta	4684 4738	3760 3741	826 899	98 98	80.27 % 78.96 %	17.63 % 18.97 %	2.09 % 2.07 %
Juno.com	4737 4781	3776 3831	866 843	95 107	79.71 % 80.13 %	18.28 % 17.63 %	2.01 % 2.24 %
Mailfence	4362 4689	3480 3712	798 877	84 100	79.78 % 79.16 %	18.29 % 18.70 %	1.93 % 2.13 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.