ConvertKit and Postmark Email Deliverability Comparison

In this comparison, the deliverability of ConvertKit 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 ConvertKit.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
394.406 62.077	302.081 50.973	78.208 8.694	14.117 2.410

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 ConvertKit in this comparison.

Inbox (%)	Spam (%)	Lost (%)
76.59 % 82.11 %	19.83 % 14.01 %	3.58 % 3.88 %

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	30362 4830	24204 4056	5178 592	980 182	79.72 % 83.98 %	17.05 % 12.26 %	3.23 % 3.77 %
Elektronics	30287 4784	23385 3986	5902 631	1000 167	77.21 % 83.32 %	19.49 % 13.19 %	3.30 % 3.49 %
Entertainment	30255 4674	23092 3825	6045 665	1118 184	76.32 % 81.84 %	19.98 % 14.23 %	3.70 % 3.94 %
Cosmetics & Beauty	30425 4777	23232 3902	6099 679	1094 196	76.36 % 81.68 %	20.05 % 14.21 %	3.60 % 4.10 %
Food & Drink	30373 4630	24085 3945	5283 545	1005 140	79.30 % 85.21 %	17.39 % 11.77 %	3.31 % 3.02 %
Home & Garden	30268 4818	24131 4086	5167 570	970 162	79.72 % 84.81 %	17.07 % 11.83 %	3.20 % 3.36 %
Finance	30282 4847	22132 3831	6922 783	1228 233	73.09 % 79.04 %	22.86 % 16.15 %	4.06 % 4.81 %
Health	30386 4745	22511 3829	6731 712	1144 204	74.08 % 80.70 %	22.15 % 15.01 %	3.76 % 4.30 %
Pets	30515 4821	24072 4013	5436 627	1007 181	78.89 % 83.24 %	17.81 % 13.01 %	3.30 % 3.75 %
Sport & Fitness	30484 4709	23007 3824	6312 710	1165 175	75.47 % 81.21 %	20.71 % 15.08 %	3.82 % 3.72 %
Job & Career	30364 4745	22710 3782	6456 759	1198 204	74.79 % 79.70 %	21.26 % 16.00 %	3.95 % 4.30 %
Dating	30301 4746	21762 3771	7322 765	1217 210	71.82 % 79.46 %	24.16 % 16.12 %	4.02 % 4.42 %
Other	30104 4951	23758 4123	5355 656	991 172	78.92 % 83.28 %	17.79 % 13.25 %	3.29 % 3.47 %

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 ConvertKit.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	39282 4728	28873 3610	8892 871	1517 247	73.50 % 76.35 %	22.64 % 18.42 %	3.86 % 5.22 %
Outlook Mail	38997 4561	28821 3660	8633 713	1543 188	73.91 % 80.25 %	22.14 % 15.63 %	3.96 % 4.12 %
Yahoo Mail	40103 4764	30633 3877	8046 699	1424 188	76.39 % 81.38 %	20.06 % 14.67 %	3.55 % 3.95 %
AOL Mail	39425 4865	30059 3963	7908 705	1458 197	76.24 % 81.46 %	20.06 % 14.49 %	3.70 % 4.05 %
Mail.com	38624 4799	30060 3957	7211 651	1353 191	77.83 % 82.45 %	18.67 % 13.57 %	3.50 % 3.98 %
Yandex Mail	38821 4676	29129 3761	8168 724	1524 191	75.03 % 80.43 %	21.04 % 15.48 %	3.93 % 4.08 %
GMX Mail	39819 4739	30627 3982	7798 585	1394 172	76.92 % 84.03 %	19.58 % 12.34 %	3.50 % 3.63 %
Zoho Mail	40117 4909	31303 4131	7430 614	1384 164	78.03 % 84.15 %	18.52 % 12.51 %	3.45 % 3.34 %
ProtonMail	39371 4740	30858 4028	7262 546	1251 166	78.38 % 84.98 %	18.45 % 11.52 %	3.18 % 3.50 %
Custom Mail	39847 4800	31718 4082	6860 561	1269 157	79.60 % 85.04 %	17.22 % 11.69 %	3.18 % 3.27 %

Compare ConvertKit with other providers

Compare the email deliverability of ConvertKit with other providers.