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 SendGrid than for Constant Contact.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
65.185 65.457	50.153 49.992	13.533 13.772	1.499 1.693

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. SendGrid beats Constant Contact in this comparison.

Inbox (%)	Spam (%)	Lost (%)
76.94 % 76.37 %	20.76 % 21.04 %	2.30 % 2.59 %

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, SendGrid is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	5061 4789	3889 3623	1054 1037	118 129	76.84 % 75.65 %	20.83 % 21.65 %	2.33 % 2.69 %
Elektronics	5043 4926	3919 3784	1007 1023	117 119	77.71 % 76.82 %	19.97 % 20.77 %	2.32 % 2.42 %
Entertainment	5009 5074	3816 3868	1073 1073	120 133	76.18 % 76.23 %	21.42 % 21.15 %	2.40 % 2.62 %
Cosmetics & Beauty	5165 5140	3989 3913	1056 1097	120 130	77.23 % 76.13 %	20.45 % 21.34 %	2.32 % 2.53 %
Food & Drink	5126 5050	3916 3825	1094 1104	116 121	76.39 % 75.74 %	21.34 % 21.86 %	2.26 % 2.40 %
Home & Garden	4941 4925	3776 3745	1057 1054	108 126	76.42 % 76.04 %	21.39 % 21.40 %	2.19 % 2.56 %
Finance	4994 5060	4012 4068	860 852	122 140	80.34 % 80.40 %	17.22 % 16.84 %	2.44 % 2.77 %
Health	5103 4980	4121 3959	869 890	113 131	80.76 % 79.50 %	17.03 % 17.87 %	2.21 % 2.63 %
Pets	5124 5077	3911 3892	1090 1051	123 134	76.33 % 76.66 %	21.27 % 20.70 %	2.40 % 2.64 %
Sport & Fitness	4949 5187	3797 3937	1030 1106	122 144	76.72 % 75.90 %	20.81 % 21.32 %	2.47 % 2.78 %
Job & Career	4643 5011	3435 3700	1105 1189	103 122	73.98 % 73.84 %	23.80 % 23.73 %	2.22 % 2.43 %
Dating	5001 5086	3629 3651	1261 1303	111 132	72.57 % 71.79 %	25.21 % 25.62 %	2.22 % 2.60 %
Other	5026 5152	3943 4027	977 993	106 132	78.45 % 78.16 %	19.44 % 19.27 %	2.11 % 2.56 %

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, SendGrid is better than Constant Contact.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	4467 4727	3273 3484	1084 1128	110 115	73.27 % 73.70 %	24.27 % 23.86 %	2.46 % 2.43 %
Outlook Mail	4749 4400	3602 3264	1046 1018	101 118	75.85 % 74.18 %	22.03 % 23.14 %	2.13 % 2.68 %
Yahoo Mail	4588 4699	3513 3522	970 1049	105 128	76.57 % 74.95 %	21.14 % 22.32 %	2.29 % 2.72 %
AOL Mail	4540 4621	3433 3484	999 1013	108 124	75.62 % 75.39 %	22.00 % 21.92 %	2.38 % 2.68 %
Mail.com	4832 4980	3771 3850	952 1004	109 126	78.04 % 77.31 %	19.70 % 20.16 %	2.26 % 2.53 %
Yandex Mail	4701 4626	3574 3497	1021 1015	106 114	76.03 % 75.59 %	21.72 % 21.94 %	2.25 % 2.46 %
GMX Mail	4503 4608	3390 3420	1019 1072	94 116	75.28 % 74.22 %	22.63 % 23.26 %	2.09 % 2.52 %
Zoho Mail	4711 4815	3628 3732	977 958	106 125	77.01 % 77.51 %	20.74 % 19.90 %	2.25 % 2.60 %
ProtonMail	4501 4573	3552 3605	840 850	109 118	78.92 % 78.83 %	18.66 % 18.59 %	2.42 % 2.58 %
Custom Mail	4741 4742	3784 3741	846 883	111 118	79.81 % 78.89 %	17.84 % 18.62 %	2.34 % 2.49 %
iCloud Mail	4564 4615	3364 3379	1091 1109	109 127	73.71 % 73.22 %	23.90 % 24.03 %	2.39 % 2.75 %
Tuta	4795 4704	3785 3681	899 896	111 127	78.94 % 78.25 %	18.75 % 19.05 %	2.31 % 2.70 %
Juno.com	4717 4580	3724 3593	885 873	108 114	78.95 % 78.45 %	18.76 % 19.06 %	2.29 % 2.49 %
Mailfence	4776 4767	3760 3740	904 904	112 123	78.73 % 78.46 %	18.93 % 18.96 %	2.35 % 2.58 %

Compare SendGrid with other providers

Compare the email deliverability of SendGrid with other providers.