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 70.968	302.081 58.513	78.208 9.753	14.117 2.702

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 % 82.45 %	19.83 % 13.74 %	3.58 % 3.81 %

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 5537	24204 4670	5178 662	980 205	79.72 % 84.34 %	17.05 % 11.96 %	3.23 % 3.70 %
Elektronics	30287 5505	23385 4609	5902 710	1000 186	77.21 % 83.72 %	19.49 % 12.90 %	3.30 % 3.38 %
Entertainment	30255 5319	23092 4371	6045 741	1118 207	76.32 % 82.18 %	19.98 % 13.93 %	3.70 % 3.89 %
Cosmetics & Beauty	30425 5459	23232 4481	6099 760	1094 218	76.36 % 82.08 %	20.05 % 13.92 %	3.60 % 3.99 %
Food & Drink	30373 5286	24085 4509	5283 615	1005 162	79.30 % 85.30 %	17.39 % 11.63 %	3.31 % 3.06 %
Home & Garden	30268 5504	24131 4690	5167 635	970 179	79.72 % 85.21 %	17.07 % 11.54 %	3.20 % 3.25 %
Finance	30282 5547	22132 4403	6922 882	1228 262	73.09 % 79.38 %	22.86 % 15.90 %	4.06 % 4.72 %
Health	30386 5399	22511 4378	6731 795	1144 226	74.08 % 81.09 %	22.15 % 14.72 %	3.76 % 4.19 %
Pets	30515 5541	24072 4634	5436 706	1007 201	78.89 % 83.63 %	17.81 % 12.74 %	3.30 % 3.63 %
Sport & Fitness	30484 5361	23007 4375	6312 794	1165 192	75.47 % 81.61 %	20.71 % 14.81 %	3.82 % 3.58 %
Job & Career	30364 5466	22710 4371	6456 862	1198 233	74.79 % 79.97 %	21.26 % 15.77 %	3.95 % 4.26 %
Dating	30301 5448	21762 4352	7322 862	1217 234	71.82 % 79.88 %	24.16 % 15.82 %	4.02 % 4.30 %
Other	30104 5596	23758 4670	5355 729	991 197	78.92 % 83.45 %	17.79 % 13.03 %	3.29 % 3.52 %

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 5436	28873 4170	8892 988	1517 278	73.50 % 76.71 %	22.64 % 18.18 %	3.86 % 5.11 %
Outlook Mail	38997 5238	28821 4220	8633 802	1543 216	73.91 % 80.57 %	22.14 % 15.31 %	3.96 % 4.12 %
Yahoo Mail	40103 5421	30633 4433	8046 778	1424 210	76.39 % 81.77 %	20.06 % 14.35 %	3.55 % 3.87 %
AOL Mail	39425 5516	30059 4503	7908 787	1458 226	76.24 % 81.64 %	20.06 % 14.27 %	3.70 % 4.10 %
Mail.com	38624 5408	30060 4479	7211 721	1353 208	77.83 % 82.82 %	18.67 % 13.33 %	3.50 % 3.85 %
Yandex Mail	38821 5347	29129 4318	8168 814	1524 215	75.03 % 80.76 %	21.04 % 15.22 %	3.93 % 4.02 %
GMX Mail	39819 5484	30627 4626	7798 665	1394 193	76.92 % 84.35 %	19.58 % 12.13 %	3.50 % 3.52 %
Zoho Mail	40117 5625	31303 4750	7430 689	1384 186	78.03 % 84.44 %	18.52 % 12.25 %	3.45 % 3.31 %
ProtonMail	39371 5409	30858 4615	7262 611	1251 183	78.38 % 85.32 %	18.45 % 11.30 %	3.18 % 3.38 %
Custom Mail	39847 5524	31718 4718	6860 628	1269 178	79.60 % 85.41 %	17.22 % 11.37 %	3.18 % 3.22 %

Compare ConvertKit with other providers

Compare the email deliverability of ConvertKit with other providers.