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 MailChimp than for Postmark.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
77.301 76.739	59.644 60.005	15.881 15.302	1.776 1.432

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. MailChimp beats Postmark in this comparison.

Inbox (%)	Spam (%)	Lost (%)
77.16 % 78.19 %	20.54 % 19.94 %	2.30 % 1.87 %

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, MailChimp is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	6223 6027	4769 4727	1314 1181	140 119	76.64 % 78.43 %	21.12 % 19.60 %	2.25 % 1.97 %
Elektronics	5871 5905	4570 4674	1167 1129	134 102	77.84 % 79.15 %	19.88 % 19.12 %	2.28 % 1.73 %
Entertainment	5960 5930	4591 4613	1247 1199	122 118	77.03 % 77.79 %	20.92 % 20.22 %	2.05 % 1.99 %
Cosmetics & Beauty	5909 5984	4594 4703	1189 1155	126 126	77.75 % 78.59 %	20.12 % 19.30 %	2.13 % 2.11 %
Food & Drink	5893 5720	4518 4440	1249 1167	126 113	76.67 % 77.62 %	21.19 % 20.40 %	2.14 % 1.98 %
Home & Garden	6020 5892	4626 4587	1255 1186	139 119	76.84 % 77.85 %	20.85 % 20.13 %	2.31 % 2.02 %
Finance	5866 5806	4707 4741	1016 959	143 106	80.24 % 81.66 %	17.32 % 16.52 %	2.44 % 1.83 %
Health	6028 6004	4852 4873	1041 1034	135 97	80.49 % 81.16 %	17.27 % 17.22 %	2.24 % 1.62 %
Pets	6083 5926	4634 4588	1310 1229	139 109	76.18 % 77.42 %	21.54 % 20.74 %	2.29 % 1.84 %
Sport & Fitness	5716 5900	4412 4585	1165 1209	139 106	77.19 % 77.71 %	20.38 % 20.49 %	2.43 % 1.80 %
Job & Career	5918 5958	4407 4566	1369 1273	142 119	74.47 % 76.64 %	23.13 % 21.37 %	2.40 % 2.00 %
Dating	5907 5887	4330 4323	1439 1473	138 91	73.30 % 73.43 %	24.36 % 25.02 %	2.34 % 1.55 %
Other	5907 5800	4634 4585	1120 1108	153 107	78.45 % 79.05 %	18.96 % 19.10 %	2.59 % 1.84 %

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, MailChimp is better than Postmark.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	5360 5593	3949 4190	1278 1296	133 107	73.68 % 74.92 %	23.84 % 23.17 %	2.48 % 1.91 %
Outlook Mail	5461 5529	4108 4217	1232 1215	121 97	75.22 % 76.27 %	22.56 % 21.98 %	2.22 % 1.75 %
Yahoo Mail	5550 5348	4209 4113	1223 1136	118 99	75.84 % 76.91 %	22.04 % 21.24 %	2.13 % 1.85 %
AOL Mail	5429 5571	4148 4329	1153 1138	128 104	76.40 % 77.71 %	21.24 % 20.43 %	2.36 % 1.87 %
Mail.com	5528 5591	4361 4452	1042 1034	125 105	78.89 % 79.63 %	18.85 % 18.49 %	2.26 % 1.88 %
Yandex Mail	5569 5337	4255 4137	1192 1112	122 88	76.41 % 77.52 %	21.40 % 20.84 %	2.19 % 1.65 %
GMX Mail	5418 5458	4051 4176	1244 1179	123 103	74.77 % 76.51 %	22.96 % 21.60 %	2.27 % 1.89 %
Zoho Mail	5521 5587	4308 4447	1088 1039	125 101	78.03 % 79.60 %	19.71 % 18.60 %	2.26 % 1.81 %
ProtonMail	5639 5463	4482 4395	1032 970	125 98	79.48 % 80.45 %	18.30 % 17.76 %	2.22 % 1.79 %
Custom Mail	5386 5293	4313 4277	957 917	116 99	80.08 % 80.80 %	17.77 % 17.32 %	2.15 % 1.87 %
iCloud Mail	5534 5402	4043 4024	1354 1276	137 102	73.06 % 74.49 %	24.47 % 23.62 %	2.48 % 1.89 %
Tuta	5675 5611	4483 4479	1062 1023	130 109	79.00 % 79.83 %	18.71 % 18.23 %	2.29 % 1.94 %
Juno.com	5728 5417	4584 4350	998 945	146 122	80.03 % 80.30 %	17.42 % 17.45 %	2.55 % 2.25 %
Mailfence	5503 5539	4350 4419	1026 1022	127 98	79.05 % 79.78 %	18.64 % 18.45 %	2.31 % 1.77 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.