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
76.613 76.798	59.252 59.444	15.766 15.641	1.595 1.713

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 (%)
77.34 % 77.40 %	20.58 % 20.37 %	2.08 % 2.23 %

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	5967 6023	4621 4621	1214 1271	132 131	77.44 % 76.72 %	20.35 % 21.10 %	2.21 % 2.17 %
Elektronics	5833 5836	4562 4530	1155 1176	116 130	78.21 % 77.62 %	19.80 % 20.15 %	1.99 % 2.23 %
Entertainment	5887 5800	4518 4456	1242 1225	127 119	76.75 % 76.83 %	21.10 % 21.12 %	2.16 % 2.05 %
Cosmetics & Beauty	5995 5908	4649 4597	1213 1184	133 127	77.55 % 77.81 %	20.23 % 20.04 %	2.22 % 2.15 %
Food & Drink	5899 5933	4523 4555	1254 1256	122 122	76.67 % 76.77 %	21.26 % 21.17 %	2.07 % 2.06 %
Home & Garden	5782 6024	4470 4641	1189 1249	123 134	77.31 % 77.04 %	20.56 % 20.73 %	2.13 % 2.22 %
Finance	5772 6100	4663 4945	994 1013	115 142	80.79 % 81.07 %	17.22 % 16.61 %	1.99 % 2.33 %
Health	5975 6121	4841 4955	1020 1027	114 139	81.02 % 80.95 %	17.07 % 16.78 %	1.91 % 2.27 %
Pets	5858 6016	4488 4606	1246 1275	124 135	76.61 % 76.56 %	21.27 % 21.19 %	2.12 % 2.24 %
Sport & Fitness	5916 5696	4517 4426	1279 1145	120 125	76.35 % 77.70 %	21.62 % 20.10 %	2.03 % 2.19 %
Job & Career	5965 5828	4522 4344	1315 1351	128 133	75.81 % 74.54 %	22.05 % 23.18 %	2.15 % 2.28 %
Dating	5837 5816	4253 4275	1471 1409	113 132	72.86 % 73.50 %	25.20 % 24.23 %	1.94 % 2.27 %
Other	5927 5697	4625 4493	1174 1060	128 144	78.03 % 78.87 %	19.81 % 18.61 %	2.16 % 2.53 %

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	5532 5291	4089 3899	1328 1274	115 118	73.92 % 73.69 %	24.01 % 24.08 %	2.08 % 2.23 %
Outlook Mail	5564 5439	4210 4102	1236 1216	118 121	75.66 % 75.42 %	22.21 % 22.36 %	2.12 % 2.22 %
Yahoo Mail	5448 5571	4117 4230	1213 1222	118 119	75.57 % 75.93 %	22.27 % 21.94 %	2.17 % 2.14 %
AOL Mail	5409 5502	4134 4233	1161 1137	114 132	76.43 % 76.94 %	21.46 % 20.67 %	2.11 % 2.40 %
Mail.com	5504 5715	4344 4517	1044 1074	116 124	78.92 % 79.04 %	18.97 % 18.79 %	2.11 % 2.17 %
Yandex Mail	5317 5557	4106 4241	1115 1193	96 123	77.22 % 76.32 %	20.97 % 21.47 %	1.81 % 2.21 %
GMX Mail	5521 5337	4158 4004	1243 1212	120 121	75.31 % 75.02 %	22.51 % 22.71 %	2.17 % 2.27 %
Zoho Mail	5495 5427	4314 4225	1067 1085	114 117	78.51 % 77.85 %	19.42 % 19.99 %	2.07 % 2.16 %
ProtonMail	5549 5458	4390 4373	1043 975	116 110	79.11 % 80.12 %	18.80 % 17.86 %	2.09 % 2.02 %
Custom Mail	5367 5333	4325 4300	933 914	109 119	80.59 % 80.63 %	17.38 % 17.14 %	2.03 % 2.23 %
iCloud Mail	5449 5380	4026 3973	1311 1279	112 128	73.89 % 73.85 %	24.06 % 23.77 %	2.06 % 2.38 %
Tuta	5457 5717	4309 4544	1035 1046	113 127	78.96 % 79.48 %	18.97 % 18.30 %	2.07 % 2.22 %
Juno.com	5540 5712	4416 4540	1000 1033	124 139	79.71 % 79.48 %	18.05 % 18.08 %	2.24 % 2.43 %
Mailfence	5461 5359	4314 4263	1037 981	110 115	79.00 % 79.55 %	18.99 % 18.31 %	2.01 % 2.15 %

Compare MailChimp with other providers

Compare the email deliverability of MailChimp with other providers.