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
76.042 77.274	58.789 59.590	15.604 15.974	1.649 1.710

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 (%)
77.31 % 77.12 %	20.52 % 20.67 %	2.17 % 2.21 %

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	5800 5915	4452 4534	1228 1248	120 133	76.76 % 76.65 %	21.17 % 21.10 %	2.07 % 2.25 %
Elektronics	5697 5727	4393 4455	1183 1154	121 118	77.11 % 77.79 %	20.77 % 20.15 %	2.12 % 2.06 %
Entertainment	5933 6159	4572 4695	1229 1325	132 139	77.06 % 76.23 %	20.71 % 21.51 %	2.22 % 2.26 %
Cosmetics & Beauty	5789 6057	4494 4701	1177 1217	118 139	77.63 % 77.61 %	20.33 % 20.09 %	2.04 % 2.29 %
Food & Drink	5915 6135	4515 4687	1275 1303	125 145	76.33 % 76.40 %	21.56 % 21.24 %	2.11 % 2.36 %
Home & Garden	5833 5751	4507 4385	1197 1234	129 132	77.27 % 76.25 %	20.52 % 21.46 %	2.21 % 2.30 %
Finance	6042 5913	4861 4765	1052 1028	129 120	80.45 % 80.59 %	17.41 % 17.39 %	2.14 % 2.03 %
Health	5826 5947	4725 4821	971 994	130 132	81.10 % 81.07 %	16.67 % 16.71 %	2.23 % 2.22 %
Pets	5988 5798	4610 4460	1244 1207	134 131	76.99 % 76.92 %	20.77 % 20.82 %	2.24 % 2.26 %
Sport & Fitness	5842 6016	4512 4602	1208 1287	122 127	77.23 % 76.50 %	20.68 % 21.39 %	2.09 % 2.11 %
Job & Career	5756 5975	4291 4473	1340 1370	125 132	74.55 % 74.86 %	23.28 % 22.93 %	2.17 % 2.21 %
Dating	5735 5860	4198 4295	1415 1441	122 124	73.20 % 73.29 %	24.67 % 24.59 %	2.13 % 2.12 %
Other	5886 6021	4659 4717	1085 1166	142 138	79.15 % 78.34 %	18.43 % 19.37 %	2.41 % 2.29 %

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	5314 5556	3887 4079	1320 1364	107 113	73.15 % 73.42 %	24.84 % 24.55 %	2.01 % 2.03 %
Outlook Mail	5354 5533	4044 4172	1193 1244	117 117	75.53 % 75.40 %	22.28 % 22.48 %	2.19 % 2.11 %
Yahoo Mail	5476 5422	4155 4089	1203 1199	118 134	75.88 % 75.41 %	21.97 % 22.11 %	2.15 % 2.47 %
AOL Mail	5532 5588	4232 4253	1178 1209	122 126	76.50 % 76.11 %	21.29 % 21.64 %	2.21 % 2.25 %
Mail.com	5707 5585	4529 4405	1052 1052	126 128	79.36 % 78.87 %	18.43 % 18.84 %	2.21 % 2.29 %
Yandex Mail	5427 5389	4133 4131	1176 1136	118 122	76.16 % 76.66 %	21.67 % 21.08 %	2.17 % 2.26 %
GMX Mail	5492 5705	4108 4285	1258 1300	126 120	74.80 % 75.11 %	22.91 % 22.79 %	2.29 % 2.10 %
Zoho Mail	5468 5500	4295 4299	1058 1071	115 130	78.55 % 78.16 %	19.35 % 19.47 %	2.10 % 2.36 %
ProtonMail	5340 5578	4249 4408	984 1053	107 117	79.57 % 79.02 %	18.43 % 18.88 %	2.00 % 2.10 %
Custom Mail	5405 5464	4386 4439	892 914	127 111	81.15 % 81.24 %	16.50 % 16.73 %	2.35 % 2.03 %
iCloud Mail	5325 5377	3914 3927	1292 1336	119 114	73.50 % 73.03 %	24.26 % 24.85 %	2.23 % 2.12 %
Tuta	5505 5557	4383 4377	999 1057	123 123	79.62 % 78.77 %	18.15 % 19.02 %	2.23 % 2.21 %
Juno.com	5508 5539	4363 4401	1028 1008	117 130	79.21 % 79.45 %	18.66 % 18.20 %	2.12 % 2.35 %
Mailfence	5189 5481	4111 4325	971 1031	107 125	79.23 % 78.91 %	18.71 % 18.81 %	2.06 % 2.28 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.