SendGrid and Constant Contact Email Deliverability Comparison

SendGrid

Constant Contact

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

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
63.763 63.973	48.627 50.112	14.148 12.784	1.517 1.666

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. Constant Contact beats SendGrid in this comparison.

Inbox (%)	Spam (%)	Lost (%)
76.26 % 78.33 %	22.19 % 19.98 %	2.38 % 2.60 %

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, Constant Contact is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	5052 4680	3843 3647	1128 974	123 124	76.07 % 77.93 %	22.33 % 20.81 %	2.43 % 2.65 %
Elektronics	4831 4774	3712 3773	1058 914	118 123	76.84 % 79.03 %	21.90 % 19.15 %	2.44 % 2.58 %
Entertainment	4928 5102	3748 3988	1120 1000	118 132	76.06 % 78.17 %	22.73 % 19.60 %	2.39 % 2.59 %
Cosmetics & Beauty	5169 4883	3952 3826	1129 990	122 129	76.46 % 78.35 %	21.84 % 20.27 %	2.36 % 2.64 %
Food & Drink	4895 4863	3714 3797	1094 1008	120 118	75.87 % 78.08 %	22.35 % 20.73 %	2.45 % 2.43 %
Home & Garden	4846 4976	3669 3888	1102 1016	114 127	75.71 % 78.14 %	22.74 % 20.42 %	2.35 % 2.55 %
Finance	5029 4956	3930 4015	1020 842	124 140	78.15 % 81.01 %	20.28 % 16.99 %	2.47 % 2.82 %
Health	4894 4983	3867 4004	954 896	102 132	79.02 % 80.35 %	19.49 % 17.98 %	2.08 % 2.65 %
Pets	5017 4968	3813 3895	1116 981	124 132	76.00 % 78.40 %	22.24 % 19.75 %	2.47 % 2.66 %
Sport & Fitness	4830 4949	3686 3848	1089 1006	122 133	76.31 % 77.75 %	22.55 % 20.33 %	2.53 % 2.69 %
Job & Career	4652 5031	3450 3865	1120 1084	111 130	74.16 % 76.82 %	24.08 % 21.55 %	2.39 % 2.58 %
Dating	4736 4880	3479 3655	1175 1140	111 122	73.46 % 74.90 %	24.81 % 23.36 %	2.34 % 2.50 %
Other	4884 4928	3764 3911	1043 933	108 124	77.07 % 79.36 %	21.36 % 18.93 %	2.21 % 2.52 %

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, Constant Contact is better than SendGrid.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	4707 4709	3472 3594	1154 1032	120 117	73.76 % 76.32 %	24.52 % 21.92 %	2.55 % 2.48 %
Outlook Mail	4784 4505	3620 3463	1099 966	109 120	75.67 % 76.87 %	22.97 % 21.44 %	2.28 % 2.66 %
Yahoo Mail	4589 4762	3508 3699	1011 1007	113 124	76.44 % 77.68 %	22.03 % 21.15 %	2.46 % 2.60 %
AOL Mail	4500 4603	3398 3576	1033 946	108 121	75.51 % 77.69 %	22.96 % 20.55 %	2.40 % 2.63 %
Mail.com	4714 4887	3636 3873	1004 937	109 128	77.13 % 79.25 %	21.30 % 19.17 %	2.31 % 2.62 %
Yandex Mail	4643 4565	3521 3565	1066 953	107 126	75.83 % 78.09 %	22.96 % 20.88 %	2.30 % 2.76 %
GMX Mail	4574 4561	3450 3484	1073 986	101 115	75.43 % 76.39 %	23.46 % 21.62 %	2.21 % 2.52 %
Zoho Mail	4886 4795	3725 3814	1097 899	110 127	76.24 % 79.54 %	22.45 % 18.75 %	2.25 % 2.65 %
ProtonMail	4464 4616	3454 3720	938 833	109 116	77.37 % 80.59 %	21.01 % 18.05 %	2.44 % 2.51 %
Custom Mail	4727 4732	3657 3784	984 865	116 126	77.36 % 79.97 %	20.82 % 18.28 %	2.45 % 2.66 %
iCloud Mail	4605 4639	3400 3554	1120 1020	114 125	73.83 % 76.61 %	24.32 % 21.99 %	2.48 % 2.69 %
Tuta	4628 4582	3589 3641	983 861	114 117	77.55 % 79.46 %	21.24 % 18.79 %	2.46 % 2.55 %
Juno.com	4703 4724	3654 3767	967 848	110 120	77.70 % 79.74 %	20.56 % 17.95 %	2.34 % 2.54 %
Mailfence	3239 3293	2543 2578	619 631	77 84	78.51 % 78.29 %	19.11 % 19.16 %	2.38 % 2.55 %

Compare SendGrid with other providers

Compare the email deliverability of SendGrid with other providers.