Constant Contact and SendInBlue Email Deliverability Comparison

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

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
256.875 257.565	186.356 186.910	60.968 61.599	9.551 9.056

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. SendInBlue beats Constant Contact in this comparison.

Inbox (%)	Spam (%)	Lost (%)
72.55 % 72.57 %	23.73 % 23.92 %	3.72 % 3.52 %

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, SendInBlue is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	19809 19803	15013 15076	4091 4084	705 643	75.79 % 76.13 %	20.65 % 20.62 %	3.56 % 3.25 %
Elektronics	19726 19754	14458 14446	4590 4651	678 657	73.29 % 73.13 %	23.27 % 23.54 %	3.44 % 3.33 %
Entertainment	19763 19892	14330 14306	4686 4863	747 723	72.51 % 71.92 %	23.71 % 24.45 %	3.78 % 3.63 %
Cosmetics & Beauty	19763 19795	14333 14282	4715 4768	715 745	72.52 % 72.15 %	23.86 % 24.09 %	3.62 % 3.76 %
Food & Drink	19661 20437	14974 15453	4037 4332	650 652	76.16 % 75.61 %	20.53 % 21.20 %	3.31 % 3.19 %
Home & Garden	19844 20108	15011 15262	4115 4210	718 636	75.65 % 75.90 %	20.74 % 20.94 %	3.62 % 3.16 %
Finance	20095 19714	13783 13592	5530 5355	782 767	68.59 % 68.95 %	27.52 % 27.16 %	3.89 % 3.89 %
Health	19346 19710	13404 13651	5187 5334	755 725	69.29 % 69.26 %	26.81 % 27.06 %	3.90 % 3.68 %
Pets	20175 19934	15145 14997	4323 4295	707 642	75.07 % 75.23 %	21.43 % 21.55 %	3.50 % 3.22 %
Sport & Fitness	20196 19405	14447 13983	4990 4702	759 720	71.53 % 72.06 %	24.71 % 24.23 %	3.76 % 3.71 %
Job & Career	19347 19624	13782 13946	4767 4949	798 729	71.24 % 71.07 %	24.64 % 25.22 %	4.12 % 3.71 %
Dating	19772 19654	13095 13085	5851 5823	826 746	66.23 % 66.58 %	29.59 % 29.63 %	4.18 % 3.80 %
Other	19378 19735	14581 14831	4086 4233	711 671	75.25 % 75.15 %	21.09 % 21.45 %	3.67 % 3.40 %

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, SendInBlue is better than Constant Contact.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	25627 26556	17657 18216	6971 7362	999 978	68.90 % 68.59 %	27.20 % 27.72 %	3.90 % 3.68 %
Outlook Mail	25456 25122	17764 17649	6671 6539	1021 934	69.78 % 70.25 %	26.21 % 26.03 %	4.01 % 3.72 %
Yahoo Mail	25489 25338	18456 18459	6053 5968	980 911	72.41 % 72.85 %	23.75 % 23.55 %	3.84 % 3.60 %
AOL Mail	24723 26185	17976 18885	5787 6319	960 981	72.71 % 72.12 %	23.41 % 24.13 %	3.88 % 3.75 %
Mail.com	25808 25855	19041 19092	5818 5887	949 876	73.78 % 73.84 %	22.54 % 22.77 %	3.68 % 3.39 %
Yandex Mail	25870 25626	18367 18208	6501 6469	1002 949	71.00 % 71.05 %	25.13 % 25.24 %	3.87 % 3.70 %
GMX Mail	25608 25548	18544 18624	6088 6093	976 831	72.41 % 72.90 %	23.77 % 23.85 %	3.81 % 3.25 %
Zoho Mail	25985 25536	19377 19032	5734 5648	874 856	74.57 % 74.53 %	22.07 % 22.12 %	3.36 % 3.35 %
ProtonMail	26071 25852	19253 19093	5904 5891	914 868	73.85 % 73.86 %	22.65 % 22.79 %	3.51 % 3.36 %
Custom Mail	26238 25947	19921 19652	5441 5423	876 872	75.92 % 75.74 %	20.74 % 20.90 %	3.34 % 3.36 %

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.