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
76.208 76.936	59.446 59.712	15.216 15.605	1.546 1.619

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 (%)
78.00 % 77.61 %	19.97 % 20.28 %	2.03 % 2.10 %

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	5962 5992	4609 4655	1237 1204	116 133	77.31 % 77.69 %	20.75 % 20.09 %	1.95 % 2.22 %
Elektronics	5746 5825	4487 4567	1135 1145	124 113	78.09 % 78.40 %	19.75 % 19.66 %	2.16 % 1.94 %
Entertainment	5767 5903	4475 4538	1177 1232	115 133	77.60 % 76.88 %	20.41 % 20.87 %	1.99 % 2.25 %
Cosmetics & Beauty	5867 6045	4599 4714	1151 1199	117 132	78.39 % 77.98 %	19.62 % 19.83 %	1.99 % 2.18 %
Food & Drink	5848 5962	4519 4581	1222 1253	107 128	77.27 % 76.84 %	20.90 % 21.02 %	1.83 % 2.15 %
Home & Garden	5964 5803	4638 4506	1204 1172	122 125	77.77 % 77.65 %	20.19 % 20.20 %	2.05 % 2.15 %
Finance	6130 5858	4988 4742	1017 998	125 118	81.37 % 80.95 %	16.59 % 17.04 %	2.04 % 2.01 %
Health	5936 5981	4850 4863	963 998	123 120	81.70 % 81.31 %	16.22 % 16.69 %	2.07 % 2.01 %
Pets	6013 5832	4653 4494	1238 1216	122 122	77.38 % 77.06 %	20.59 % 20.85 %	2.03 % 2.09 %
Sport & Fitness	5783 5982	4507 4589	1161 1270	115 123	77.94 % 76.71 %	20.08 % 21.23 %	1.99 % 2.06 %
Job & Career	5694 5965	4272 4537	1306 1300	116 128	75.03 % 76.06 %	22.94 % 21.79 %	2.04 % 2.15 %
Dating	5757 5889	4271 4313	1375 1466	111 110	74.19 % 73.24 %	23.88 % 24.89 %	1.93 % 1.87 %
Other	5741 5899	4578 4613	1030 1152	133 134	79.74 % 78.20 %	17.94 % 19.53 %	2.32 % 2.27 %

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	5221 5571	3883 4125	1236 1335	102 111	74.37 % 74.04 %	23.67 % 23.96 %	1.95 % 1.99 %
Outlook Mail	5281 5472	4016 4161	1158 1196	107 115	76.05 % 76.04 %	21.93 % 21.86 %	2.03 % 2.10 %
Yahoo Mail	5483 5460	4202 4155	1170 1185	111 120	76.64 % 76.10 %	21.34 % 21.70 %	2.02 % 2.20 %
AOL Mail	5582 5454	4329 4171	1136 1160	117 123	77.55 % 76.48 %	20.35 % 21.27 %	2.10 % 2.26 %
Mail.com	5748 5536	4587 4394	1051 1029	110 113	79.80 % 79.37 %	18.28 % 18.59 %	1.91 % 2.04 %
Yandex Mail	5529 5330	4238 4125	1173 1104	118 101	76.65 % 77.39 %	21.22 % 20.71 %	2.13 % 1.89 %
GMX Mail	5207 5596	3936 4230	1164 1245	107 121	75.59 % 75.59 %	22.35 % 22.25 %	2.05 % 2.16 %
Zoho Mail	5432 5518	4256 4337	1070 1064	106 117	78.35 % 78.60 %	19.70 % 19.28 %	1.95 % 2.12 %
ProtonMail	5417 5600	4360 4443	958 1034	99 123	80.49 % 79.34 %	17.69 % 18.46 %	1.83 % 2.20 %
Custom Mail	5335 5477	4329 4443	889 924	117 110	81.14 % 81.12 %	16.66 % 16.87 %	2.19 % 2.01 %
iCloud Mail	5272 5452	3941 4036	1219 1303	112 113	74.75 % 74.03 %	23.12 % 23.90 %	2.12 % 2.07 %
Tuta	5623 5533	4510 4385	999 1030	114 118	80.21 % 79.25 %	17.77 % 18.62 %	2.03 % 2.13 %
Juno.com	5731 5504	4578 4396	1029 985	124 123	79.88 % 79.87 %	17.95 % 17.90 %	2.16 % 2.23 %
Mailfence	5347 5433	4281 4311	964 1011	102 111	80.06 % 79.35 %	18.03 % 18.61 %	1.91 % 2.04 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.