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
76.959 77.364	59.487 60.340	15.878 15.418	1.594 1.606

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 (%)
77.30 % 77.99 %	20.63 % 19.93 %	2.07 % 2.08 %

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	6000 6125	4650 4737	1219 1265	131 123	77.50 % 77.34 %	20.32 % 20.65 %	2.18 % 2.01 %
Elektronics	5883 5829	4607 4554	1161 1152	115 123	78.31 % 78.13 %	19.73 % 19.76 %	1.95 % 2.11 %
Entertainment	5935 5939	4556 4607	1250 1218	129 114	76.76 % 77.57 %	21.06 % 20.51 %	2.17 % 1.92 %
Cosmetics & Beauty	5962 5972	4613 4699	1217 1157	132 116	77.37 % 78.68 %	20.41 % 19.37 %	2.21 % 1.94 %
Food & Drink	5877 5914	4530 4591	1223 1211	124 112	77.08 % 77.63 %	20.81 % 20.48 %	2.11 % 1.89 %
Home & Garden	5876 6083	4533 4729	1218 1227	125 127	77.14 % 77.74 %	20.73 % 20.17 %	2.13 % 2.09 %
Finance	5828 5980	4709 4887	1005 957	114 136	80.80 % 81.72 %	17.24 % 16.00 %	1.96 % 2.27 %
Health	5965 6023	4812 4892	1037 1009	116 122	80.67 % 81.22 %	17.38 % 16.75 %	1.94 % 2.03 %
Pets	5918 6058	4536 4677	1259 1257	123 124	76.65 % 77.20 %	21.27 % 20.75 %	2.08 % 2.05 %
Sport & Fitness	5894 5761	4500 4496	1275 1142	119 123	76.35 % 78.04 %	21.63 % 19.82 %	2.02 % 2.14 %
Job & Career	6055 5954	4585 4491	1341 1339	129 124	75.72 % 75.43 %	22.15 % 22.49 %	2.13 % 2.08 %
Dating	5860 5963	4263 4403	1486 1436	111 124	72.75 % 73.84 %	25.36 % 24.08 %	1.89 % 2.08 %
Other	5906 5763	4593 4577	1187 1048	126 138	77.77 % 79.42 %	20.10 % 18.18 %	2.13 % 2.39 %

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	5624 5361	4158 3973	1348 1270	118 118	73.93 % 74.11 %	23.97 % 23.69 %	2.10 % 2.20 %
Outlook Mail	5631 5479	4270 4166	1245 1206	116 107	75.83 % 76.04 %	22.11 % 22.01 %	2.06 % 1.95 %
Yahoo Mail	5381 5570	4091 4261	1175 1199	115 110	76.03 % 76.50 %	21.84 % 21.53 %	2.14 % 1.97 %
AOL Mail	5499 5446	4208 4213	1173 1110	118 123	76.52 % 77.36 %	21.33 % 20.38 %	2.15 % 2.26 %
Mail.com	5538 5653	4376 4514	1048 1027	114 112	79.02 % 79.85 %	18.92 % 18.17 %	2.06 % 1.98 %
Yandex Mail	5381 5609	4133 4327	1149 1168	99 114	76.81 % 77.14 %	21.35 % 20.82 %	1.84 % 2.03 %
GMX Mail	5464 5412	4128 4097	1219 1202	117 113	75.55 % 75.70 %	22.31 % 22.21 %	2.14 % 2.09 %
Zoho Mail	5556 5461	4351 4290	1090 1060	115 111	78.31 % 78.56 %	19.62 % 19.41 %	2.07 % 2.03 %
ProtonMail	5564 5591	4405 4497	1043 986	116 108	79.17 % 80.43 %	18.75 % 17.64 %	2.08 % 1.93 %
Custom Mail	5358 5358	4305 4335	944 915	109 108	80.35 % 80.91 %	17.62 % 17.08 %	2.03 % 2.02 %
iCloud Mail	5424 5528	3991 4107	1320 1298	113 123	73.58 % 74.29 %	24.34 % 23.48 %	2.08 % 2.23 %
Tuta	5520 5765	4346 4608	1060 1039	114 118	78.73 % 79.93 %	19.20 % 18.02 %	2.07 % 2.05 %
Juno.com	5487 5695	4361 4582	999 982	127 131	79.48 % 80.46 %	18.21 % 17.24 %	2.31 % 2.30 %
Mailfence	5532 5436	4364 4370	1065 956	103 110	78.89 % 80.39 %	19.25 % 17.59 %	1.86 % 2.02 %

Compare MailChimp with other providers

Compare the email deliverability of MailChimp with other providers.