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
76.936 76.208	59.712 59.446	15.605 15.216	1.619 1.546

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

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

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

Compare MailChimp with other providers

Compare the email deliverability of MailChimp with other providers.