Constant Contact and ConvertKit Email Deliverability Comparison

In this comparison, the deliverability of Constant Contact and ConvertKit 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 ConvertKit than for Constant Contact.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
256.875 257.092	186.356 190.154	60.968 58.360	9.551 8.578

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. ConvertKit beats Constant Contact in this comparison.

Inbox (%)	Spam (%)	Lost (%)
72.55 % 73.96 %	23.73 % 22.70 %	3.72 % 3.34 %

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, ConvertKit is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	19809 19849	15013 15382	4091 3864	705 603	75.79 % 77.50 %	20.65 % 19.47 %	3.56 % 3.04 %
Elektronics	19726 19992	14458 14829	4590 4514	678 649	73.29 % 74.17 %	23.27 % 22.58 %	3.44 % 3.25 %
Entertainment	19763 19623	14330 14460	4686 4500	747 663	72.51 % 73.69 %	23.71 % 22.93 %	3.78 % 3.38 %
Cosmetics & Beauty	19763 20026	14333 14777	4715 4587	715 662	72.52 % 73.79 %	23.86 % 22.91 %	3.62 % 3.31 %
Food & Drink	19661 19963	14974 15347	4037 3998	650 618	76.16 % 76.88 %	20.53 % 20.03 %	3.31 % 3.10 %
Home & Garden	19844 19561	15011 15150	4115 3814	718 597	75.65 % 77.45 %	20.74 % 19.50 %	3.62 % 3.05 %
Finance	20095 19742	13783 13856	5530 5185	782 701	68.59 % 70.19 %	27.52 % 26.26 %	3.89 % 3.55 %
Health	19346 19707	13404 13957	5187 5062	755 688	69.29 % 70.82 %	26.81 % 25.69 %	3.90 % 3.49 %
Pets	20175 19891	15145 15277	4323 3992	707 622	75.07 % 76.80 %	21.43 % 20.07 %	3.50 % 3.13 %
Sport & Fitness	20196 19888	14447 14528	4990 4655	759 705	71.53 % 73.05 %	24.71 % 23.41 %	3.76 % 3.54 %
Job & Career	19347 19729	13782 14300	4767 4707	798 722	71.24 % 72.48 %	24.64 % 23.86 %	4.12 % 3.66 %
Dating	19772 19660	13095 13346	5851 5573	826 741	66.23 % 67.88 %	29.59 % 28.35 %	4.18 % 3.77 %
Other	19378 19461	14581 14945	4086 3909	711 607	75.25 % 76.79 %	21.09 % 20.09 %	3.67 % 3.12 %

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, ConvertKit is better than Constant Contact.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	25627 25658	17657 18051	6971 6670	999 937	68.90 % 70.35 %	27.20 % 26.00 %	3.90 % 3.65 %
Outlook Mail	25456 25567	17764 18176	6671 6454	1021 937	69.78 % 71.09 %	26.21 % 25.24 %	4.01 % 3.66 %
Yahoo Mail	25489 26336	18456 19494	6053 5964	980 878	72.41 % 74.02 %	23.75 % 22.65 %	3.84 % 3.33 %
AOL Mail	24723 25702	17976 19030	5787 5803	960 869	72.71 % 74.04 %	23.41 % 22.58 %	3.88 % 3.38 %
Mail.com	25808 24863	19041 18804	5818 5263	949 796	73.78 % 75.63 %	22.54 % 21.17 %	3.68 % 3.20 %
Yandex Mail	25870 24880	18367 18072	6501 5928	1002 880	71.00 % 72.64 %	25.13 % 23.83 %	3.87 % 3.54 %
GMX Mail	25608 26029	18544 19222	6088 5972	976 835	72.41 % 73.85 %	23.77 % 22.94 %	3.81 % 3.21 %
Zoho Mail	25985 26359	19377 19907	5734 5609	874 843	74.57 % 75.52 %	22.07 % 21.28 %	3.36 % 3.20 %
ProtonMail	26071 25627	19253 19285	5904 5544	914 798	73.85 % 75.25 %	22.65 % 21.63 %	3.51 % 3.11 %
Custom Mail	26238 26071	19921 20113	5441 5153	876 805	75.92 % 77.15 %	20.74 % 19.77 %	3.34 % 3.09 %

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.