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
77.364 76.959	60.340 59.487	15.418 15.878	1.606 1.594

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

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

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

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.