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
65.936 65.137	51.160 50.600	13.384 13.149	1.392 1.388

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 (%)
77.59 % 77.68 %	20.30 % 20.19 %	2.11 % 2.13 %

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	5099 5071	3965 3914	1019 1056	115 101	77.76 % 77.18 %	19.98 % 20.82 %	2.26 % 1.99 %
Elektronics	5008 4882	3919 3796	990 979	99 107	78.25 % 77.76 %	19.77 % 20.05 %	1.98 % 2.19 %
Entertainment	5033 4910	3870 3793	1048 1011	115 106	76.89 % 77.25 %	20.82 % 20.59 %	2.28 % 2.16 %
Cosmetics & Beauty	5185 5043	4035 3928	1039 1011	111 104	77.82 % 77.89 %	20.04 % 20.05 %	2.14 % 2.06 %
Food & Drink	5184 5038	3994 3866	1077 1075	113 97	77.04 % 76.74 %	20.78 % 21.34 %	2.18 % 1.93 %
Home & Garden	4912 5083	3806 3928	998 1044	108 111	77.48 % 77.28 %	20.32 % 20.54 %	2.20 % 2.18 %
Finance	5032 5308	4079 4312	852 881	101 115	81.06 % 81.24 %	16.93 % 16.60 %	2.01 % 2.17 %
Health	5110 5000	4145 4060	860 830	105 110	81.12 % 81.20 %	16.83 % 16.60 %	2.05 % 2.20 %
Pets	4968 5137	3822 3965	1042 1063	104 109	76.93 % 77.19 %	20.97 % 20.69 %	2.09 % 2.12 %
Sport & Fitness	5174 4944	3965 3845	1105 997	104 102	76.63 % 77.77 %	21.36 % 20.17 %	2.01 % 2.06 %
Job & Career	5121 4922	3890 3676	1122 1142	109 104	75.96 % 74.69 %	21.91 % 23.20 %	2.13 % 2.11 %
Dating	5104 4871	3750 3605	1256 1165	98 101	73.47 % 74.01 %	24.61 % 23.92 %	1.92 % 2.07 %
Other	5006 4928	3920 3912	976 895	110 121	78.31 % 79.38 %	19.50 % 18.16 %	2.20 % 2.46 %

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	4713 4479	3478 3323	1139 1062	96 94	73.80 % 74.19 %	24.17 % 23.71 %	2.04 % 2.10 %
Outlook Mail	4690 4531	3564 3444	1027 991	99 96	75.99 % 76.01 %	21.90 % 21.87 %	2.11 % 2.12 %
Yahoo Mail	4677 4597	3550 3508	1021 991	106 98	75.90 % 76.31 %	21.83 % 21.56 %	2.27 % 2.13 %
AOL Mail	4716 4857	3603 3756	1001 996	112 105	76.40 % 77.33 %	21.23 % 20.51 %	2.37 % 2.16 %
Mail.com	4803 4956	3813 3934	892 923	98 99	79.39 % 79.38 %	18.57 % 18.62 %	2.04 % 2.00 %
Yandex Mail	4594 4687	3559 3562	948 1019	87 106	77.47 % 76.00 %	20.64 % 21.74 %	1.89 % 2.26 %
GMX Mail	4720 4506	3556 3390	1066 1018	98 98	75.34 % 75.23 %	22.58 % 22.59 %	2.08 % 2.17 %
Zoho Mail	4722 4645	3721 3625	901 924	100 96	78.80 % 78.04 %	19.08 % 19.89 %	2.12 % 2.07 %
ProtonMail	4770 4620	3778 3706	889 824	103 90	79.20 % 80.22 %	18.64 % 17.84 %	2.16 % 1.95 %
Custom Mail	4779 4614	3872 3728	809 781	98 105	81.02 % 80.80 %	16.93 % 16.93 %	2.05 % 2.28 %
iCloud Mail	4637 4518	3432 3365	1108 1052	97 101	74.01 % 74.48 %	23.89 % 23.28 %	2.09 % 2.24 %
Tuta	4747 4771	3763 3807	884 863	100 101	79.27 % 79.79 %	18.62 % 18.09 %	2.11 % 2.12 %
Juno.com	4755 4871	3805 3869	844 892	106 110	80.02 % 79.43 %	17.75 % 18.31 %	2.23 % 2.26 %
Mailfence	4613 4485	3666 3583	855 813	92 89	79.47 % 79.89 %	18.53 % 18.13 %	1.99 % 1.98 %

Compare MailChimp with other providers

Compare the email deliverability of MailChimp with other providers.