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
65.267 63.961	51.137 50.217	13.071 12.619	1.361 1.413

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 (%)
78.35 % 78.51 %	20.03 % 19.73 %	2.09 % 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	4987 4804	3871 3757	1037 971	101 105	77.62 % 78.21 %	20.79 % 20.21 %	2.03 % 2.19 %
Elektronics	4907 4766	3871 3746	970 946	94 106	78.89 % 78.60 %	19.77 % 19.85 %	1.92 % 2.22 %
Entertainment	5288 5025	4105 3920	1108 1009	111 117	77.63 % 78.01 %	20.95 % 20.08 %	2.10 % 2.33 %
Cosmetics & Beauty	5049 4806	3985 3784	967 947	114 99	78.93 % 78.73 %	19.15 % 19.70 %	2.26 % 2.06 %
Food & Drink	5265 4939	4089 3846	1079 1009	121 104	77.66 % 77.87 %	20.49 % 20.43 %	2.30 % 2.11 %
Home & Garden	4715 4853	3648 3813	985 939	102 111	77.37 % 78.57 %	20.89 % 19.35 %	2.16 % 2.29 %
Finance	5020 5124	4070 4152	868 892	98 110	81.08 % 81.03 %	17.29 % 17.41 %	1.95 % 2.15 %
Health	5008 4903	4086 4012	840 783	103 108	81.59 % 81.83 %	16.77 % 15.97 %	2.06 % 2.20 %
Pets	4928 4994	3860 3887	989 1004	105 115	78.33 % 77.83 %	20.07 % 20.10 %	2.13 % 2.30 %
Sport & Fitness	5039 4948	3930 3871	1033 997	103 106	77.99 % 78.23 %	20.50 % 20.15 %	2.04 % 2.14 %
Job & Career	4989 4860	3816 3703	1090 1080	104 109	76.49 % 76.19 %	21.85 % 22.22 %	2.08 % 2.24 %
Dating	4949 4816	3721 3616	1147 1124	99 106	75.19 % 75.08 %	23.18 % 23.34 %	2.00 % 2.20 %
Other	5123 5123	4085 4110	958 918	106 117	79.74 % 80.23 %	18.70 % 17.92 %	2.07 % 2.28 %

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	4801 4572	3618 3436	1136 1061	87 95	75.36 % 75.15 %	23.66 % 23.21 %	1.81 % 2.08 %
Outlook Mail	4589 4560	3525 3490	997 972	89 105	76.81 % 76.54 %	21.73 % 21.32 %	1.94 % 2.30 %
Yahoo Mail	4637 4647	3550 3595	970 968	108 104	76.56 % 77.36 %	20.92 % 20.83 %	2.33 % 2.24 %
AOL Mail	4887 4668	3788 3635	1014 949	103 100	77.51 % 77.87 %	20.75 % 20.33 %	2.11 % 2.14 %
Mail.com	4789 4676	3814 3755	902 833	104 103	79.64 % 80.30 %	18.83 % 17.81 %	2.17 % 2.20 %
Yandex Mail	4681 4591	3641 3565	958 944	105 102	77.78 % 77.65 %	20.47 % 20.56 %	2.24 % 2.22 %
GMX Mail	4864 4634	3723 3552	1076 994	93 110	76.54 % 76.65 %	22.12 % 21.45 %	1.91 % 2.37 %
Zoho Mail	4722 4714	3765 3774	890 866	108 102	79.73 % 80.06 %	18.85 % 18.37 %	2.29 % 2.16 %
ProtonMail	4729 4452	3786 3567	870 824	94 93	80.06 % 80.12 %	18.40 % 18.51 %	1.99 % 2.09 %
Custom Mail	4626 4631	3781 3783	770 756	87 108	81.73 % 81.69 %	16.65 % 16.32 %	1.88 % 2.33 %
iCloud Mail	4499 4587	3371 3469	1073 1035	89 102	74.93 % 75.63 %	23.85 % 22.56 %	1.98 % 2.22 %
Tuta	4741 4657	3807 3750	856 833	103 106	80.30 % 80.52 %	18.06 % 17.89 %	2.17 % 2.28 %
Juno.com	4741 4828	3812 3877	842 887	103 105	80.40 % 80.30 %	17.76 % 18.37 %	2.17 % 2.17 %
Mailfence	3961 3744	3156 2969	717 697	88 78	79.68 % 79.30 %	18.10 % 18.62 %	2.22 % 2.08 %

Compare MailChimp with other providers

Compare the email deliverability of MailChimp with other providers.