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
76.798 76.613	59.444 59.252	15.641 15.766	1.713 1.595

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 (%)
77.40 % 77.34 %	20.37 % 20.58 %	2.23 % 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	6023 5967	4621 4621	1271 1214	131 132	76.72 % 77.44 %	21.10 % 20.35 %	2.17 % 2.21 %
Elektronics	5836 5833	4530 4562	1176 1155	130 116	77.62 % 78.21 %	20.15 % 19.80 %	2.23 % 1.99 %
Entertainment	5800 5887	4456 4518	1225 1242	119 127	76.83 % 76.75 %	21.12 % 21.10 %	2.05 % 2.16 %
Cosmetics & Beauty	5908 5995	4597 4649	1184 1213	127 133	77.81 % 77.55 %	20.04 % 20.23 %	2.15 % 2.22 %
Food & Drink	5933 5899	4555 4523	1256 1254	122 122	76.77 % 76.67 %	21.17 % 21.26 %	2.06 % 2.07 %
Home & Garden	6024 5782	4641 4470	1249 1189	134 123	77.04 % 77.31 %	20.73 % 20.56 %	2.22 % 2.13 %
Finance	6100 5772	4945 4663	1013 994	142 115	81.07 % 80.79 %	16.61 % 17.22 %	2.33 % 1.99 %
Health	6121 5975	4955 4841	1027 1020	139 114	80.95 % 81.02 %	16.78 % 17.07 %	2.27 % 1.91 %
Pets	6016 5858	4606 4488	1275 1246	135 124	76.56 % 76.61 %	21.19 % 21.27 %	2.24 % 2.12 %
Sport & Fitness	5696 5916	4426 4517	1145 1279	125 120	77.70 % 76.35 %	20.10 % 21.62 %	2.19 % 2.03 %
Job & Career	5828 5965	4344 4522	1351 1315	133 128	74.54 % 75.81 %	23.18 % 22.05 %	2.28 % 2.15 %
Dating	5816 5837	4275 4253	1409 1471	132 113	73.50 % 72.86 %	24.23 % 25.20 %	2.27 % 1.94 %
Other	5697 5927	4493 4625	1060 1174	144 128	78.87 % 78.03 %	18.61 % 19.81 %	2.53 % 2.16 %

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

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.