MailChimp and Postmark Email Deliverability Comparison

MailChimp

Postmark

In this comparison, the deliverability of MailChimp 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 Postmark than for MailChimp.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
66.382 64.919	51.054 50.483	13.829 13.108	1.499 1.328

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 (%)
76.91 % 77.76 %	20.83 % 20.19 %	2.26 % 2.05 %

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	5101 4961	3894 3834	1089 1029	118 98	76.34 % 77.28 %	21.35 % 20.74 %	2.31 % 1.98 %
Elektronics	4904 4886	3804 3792	996 995	104 99	77.57 % 77.61 %	20.31 % 20.36 %	2.12 % 2.03 %
Entertainment	5369 5077	4076 3911	1171 1056	122 110	75.92 % 77.03 %	21.81 % 20.80 %	2.27 % 2.17 %
Cosmetics & Beauty	5168 4939	4006 3857	1041 987	121 95	77.52 % 78.09 %	20.14 % 19.98 %	2.34 % 1.92 %
Food & Drink	5285 5041	4035 3880	1124 1060	126 101	76.35 % 76.97 %	21.27 % 21.03 %	2.38 % 2.00 %
Home & Garden	4863 4911	3697 3830	1056 976	110 105	76.02 % 77.99 %	21.71 % 19.87 %	2.26 % 2.14 %
Finance	5073 5187	4069 4202	898 882	106 103	80.21 % 81.01 %	17.70 % 17.00 %	2.09 % 1.99 %
Health	5124 4990	4147 4089	861 799	116 102	80.93 % 81.94 %	16.80 % 16.01 %	2.26 % 2.04 %
Pets	4941 5064	3794 3908	1033 1048	114 108	76.79 % 77.17 %	20.91 % 20.70 %	2.31 % 2.13 %
Sport & Fitness	5173 4964	3949 3838	1111 1030	113 96	76.34 % 77.32 %	21.48 % 20.75 %	2.18 % 1.93 %
Job & Career	5096 4917	3798 3695	1183 1123	115 99	74.53 % 75.15 %	23.21 % 22.84 %	2.26 % 2.01 %
Dating	5038 4963	3682 3653	1241 1210	115 100	73.08 % 73.60 %	24.63 % 24.38 %	2.28 % 2.01 %
Other	5247 5019	4103 3994	1025 913	119 112	78.20 % 79.58 %	19.53 % 18.19 %	2.27 % 2.23 %

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	4814 4490	3525 3294	1190 1111	99 85	73.22 % 73.36 %	24.72 % 24.74 %	2.06 % 1.89 %
Outlook Mail	4762 4554	3581 3450	1078 1009	103 95	75.20 % 75.76 %	22.64 % 22.16 %	2.16 % 2.09 %
Yahoo Mail	4667 4733	3510 3613	1038 1022	119 98	75.21 % 76.34 %	22.24 % 21.59 %	2.55 % 2.07 %
AOL Mail	4835 4753	3679 3652	1043 1003	113 98	76.09 % 76.84 %	21.57 % 21.10 %	2.34 % 2.06 %
Mail.com	4713 4829	3701 3857	903 871	109 101	78.53 % 79.87 %	19.16 % 18.04 %	2.31 % 2.09 %
Yandex Mail	4602 4621	3523 3537	970 990	109 94	76.55 % 76.54 %	21.08 % 21.42 %	2.37 % 2.03 %
GMX Mail	4884 4662	3652 3517	1126 1045	106 100	74.77 % 75.44 %	23.05 % 22.42 %	2.17 % 2.15 %
Zoho Mail	4719 4636	3669 3676	935 865	115 95	77.75 % 79.29 %	19.81 % 18.66 %	2.44 % 2.05 %
ProtonMail	4809 4513	3772 3599	933 831	104 83	78.44 % 79.75 %	19.40 % 18.41 %	2.16 % 1.84 %
Custom Mail	4669 4622	3797 3768	778 751	94 103	81.32 % 81.52 %	16.66 % 16.25 %	2.01 % 2.23 %
iCloud Mail	4648 4550	3388 3366	1161 1091	99 93	72.89 % 73.98 %	24.98 % 23.98 %	2.13 % 2.04 %
Tuta	4741 4689	3737 3755	898 835	106 99	78.82 % 80.08 %	18.94 % 17.81 %	2.24 % 2.11 %
Juno.com	4766 4771	3779 3796	878 880	109 95	79.29 % 79.56 %	18.42 % 18.44 %	2.29 % 1.99 %
Mailfence	4753 4496	3741 3603	898 804	114 89	78.71 % 80.14 %	18.89 % 17.88 %	2.40 % 1.98 %

Compare MailChimp with other providers

Compare the email deliverability of MailChimp with other providers.