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
64.970 65.852	49.945 49.870	13.532 14.151	1.493 1.831

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 (%)
76.87 % 75.73 %	20.83 % 21.49 %	2.30 % 2.78 %

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	5069 4975	3921 3735	1037 1093	111 147	77.35 % 75.08 %	20.46 % 21.97 %	2.19 % 2.95 %
Elektronics	4956 5013	3829 3808	1009 1072	118 133	77.26 % 75.96 %	20.36 % 21.38 %	2.38 % 2.65 %
Entertainment	4997 5191	3813 3918	1061 1130	123 143	76.31 % 75.48 %	21.23 % 21.77 %	2.46 % 2.75 %
Cosmetics & Beauty	5082 5249	3911 3970	1052 1140	119 139	76.96 % 75.63 %	20.70 % 21.72 %	2.34 % 2.65 %
Food & Drink	5121 5000	3910 3762	1093 1109	118 129	76.35 % 75.24 %	21.34 % 22.18 %	2.30 % 2.58 %
Home & Garden	4885 4940	3714 3732	1063 1070	108 138	76.03 % 75.55 %	21.76 % 21.66 %	2.21 % 2.79 %
Finance	4986 5044	4004 4011	859 884	123 149	80.30 % 79.52 %	17.23 % 17.53 %	2.47 % 2.95 %
Health	5064 4973	4078 3925	873 909	113 139	80.53 % 78.93 %	17.24 % 18.28 %	2.23 % 2.80 %
Pets	5145 5123	3945 3874	1080 1104	120 145	76.68 % 75.62 %	20.99 % 21.55 %	2.33 % 2.83 %
Sport & Fitness	4935 5167	3787 3923	1027 1099	121 145	76.74 % 75.92 %	20.81 % 21.27 %	2.45 % 2.81 %
Job & Career	4611 5053	3408 3688	1101 1236	102 129	73.91 % 72.99 %	23.88 % 24.46 %	2.21 % 2.55 %
Dating	5050 4989	3651 3562	1289 1285	110 142	72.30 % 71.40 %	25.52 % 25.76 %	2.18 % 2.85 %
Other	5069 5135	3974 3962	988 1020	107 153	78.40 % 77.16 %	19.49 % 19.86 %	2.11 % 2.98 %

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	4569 4661	3357 3403	1109 1140	103 118	73.47 % 73.01 %	24.27 % 24.46 %	2.25 % 2.53 %
Outlook Mail	4754 4542	3604 3334	1051 1076	99 132	75.81 % 73.40 %	22.11 % 23.69 %	2.08 % 2.91 %
Yahoo Mail	4473 4750	3414 3536	953 1078	106 136	76.32 % 74.44 %	21.31 % 22.69 %	2.37 % 2.86 %
AOL Mail	4547 4611	3435 3443	1005 1035	107 133	75.54 % 74.67 %	22.10 % 22.45 %	2.35 % 2.88 %
Mail.com	4722 4915	3686 3772	929 1008	107 135	78.06 % 76.74 %	19.67 % 20.51 %	2.27 % 2.75 %
Yandex Mail	4631 4699	3519 3509	1008 1063	104 127	75.99 % 74.68 %	21.77 % 22.62 %	2.25 % 2.70 %
GMX Mail	4530 4698	3396 3479	1042 1089	92 130	74.97 % 74.05 %	23.00 % 23.18 %	2.03 % 2.77 %
Zoho Mail	4641 4864	3576 3739	957 987	108 138	77.05 % 76.87 %	20.62 % 20.29 %	2.33 % 2.84 %
ProtonMail	4655 4644	3674 3616	871 900	110 128	78.93 % 77.86 %	18.71 % 19.38 %	2.36 % 2.76 %
Custom Mail	4671 4787	3740 3739	821 918	110 130	80.07 % 78.11 %	17.58 % 19.18 %	2.35 % 2.72 %
iCloud Mail	4667 4580	3451 3334	1106 1110	110 136	73.94 % 72.79 %	23.70 % 24.24 %	2.36 % 2.97 %
Tuta	4712 4732	3707 3672	891 923	114 137	78.67 % 77.60 %	18.91 % 19.51 %	2.42 % 2.90 %
Juno.com	4667 4659	3677 3633	879 902	111 124	78.79 % 77.98 %	18.83 % 19.36 %	2.38 % 2.66 %
Mailfence	4731 4710	3709 3661	910 922	112 127	78.40 % 77.73 %	19.23 % 19.58 %	2.37 % 2.70 %

Compare SendGrid with other providers

Compare the email deliverability of SendGrid with other providers.