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
65.240 66.282	50.398 50.632	13.343 13.969	1.499 1.681

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 (%)
77.25 % 76.39 %	20.45 % 21.08 %	2.30 % 2.54 %

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	5144 5057	3942 3831	1089 1082	113 144	76.63 % 75.76 %	21.17 % 21.40 %	2.20 % 2.85 %
Elektronics	5097 5044	3976 3852	1002 1074	119 118	78.01 % 76.37 %	19.66 % 21.29 %	2.33 % 2.34 %
Entertainment	4972 5084	3825 3854	1026 1103	121 127	76.93 % 75.81 %	20.64 % 21.70 %	2.43 % 2.50 %
Cosmetics & Beauty	5020 5338	3906 4100	996 1107	118 131	77.81 % 76.81 %	19.84 % 20.74 %	2.35 % 2.45 %
Food & Drink	5074 5065	3899 3816	1053 1127	122 122	76.84 % 75.34 %	20.75 % 22.25 %	2.40 % 2.41 %
Home & Garden	4840 4893	3707 3720	1032 1040	101 133	76.59 % 76.03 %	21.32 % 21.25 %	2.09 % 2.72 %
Finance	5019 5137	4029 4115	866 891	124 131	80.27 % 80.11 %	17.25 % 17.34 %	2.47 % 2.55 %
Health	4997 4951	4040 3918	845 915	112 118	80.85 % 79.14 %	16.91 % 18.48 %	2.24 % 2.38 %
Pets	5068 5072	3904 3863	1049 1079	115 130	77.03 % 76.16 %	20.70 % 21.27 %	2.27 % 2.56 %
Sport & Fitness	5024 5207	3885 4012	1018 1066	121 129	77.33 % 77.05 %	20.26 % 20.47 %	2.41 % 2.48 %
Job & Career	4771 5172	3565 3821	1105 1232	101 119	74.72 % 73.88 %	23.16 % 23.82 %	2.12 % 2.30 %
Dating	5104 5040	3694 3645	1299 1258	111 137	72.37 % 72.32 %	25.45 % 24.96 %	2.17 % 2.72 %
Other	5110 5222	4026 4085	963 995	121 142	78.79 % 78.23 %	18.85 % 19.05 %	2.37 % 2.72 %

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	4516 4720	3314 3466	1112 1142	90 112	73.38 % 73.43 %	24.62 % 24.19 %	1.99 % 2.37 %
Outlook Mail	4739 4670	3592 3471	1043 1081	104 118	75.80 % 74.33 %	22.01 % 23.15 %	2.19 % 2.53 %
Yahoo Mail	4427 4766	3389 3591	940 1049	98 126	76.55 % 75.35 %	21.23 % 22.01 %	2.21 % 2.64 %
AOL Mail	4710 4630	3568 3488	1026 1026	116 116	75.75 % 75.33 %	21.78 % 22.16 %	2.46 % 2.51 %
Mail.com	4794 4843	3752 3741	936 983	106 119	78.26 % 77.25 %	19.52 % 20.30 %	2.21 % 2.46 %
Yandex Mail	4688 4819	3594 3636	992 1069	102 114	76.66 % 75.45 %	21.16 % 22.18 %	2.18 % 2.37 %
GMX Mail	4597 4755	3470 3565	1022 1065	105 125	75.48 % 74.97 %	22.23 % 22.40 %	2.28 % 2.63 %
Zoho Mail	4658 4707	3631 3631	921 949	106 127	77.95 % 77.14 %	19.77 % 20.16 %	2.28 % 2.70 %
ProtonMail	4591 4638	3647 3624	838 892	106 122	79.44 % 78.14 %	18.25 % 19.23 %	2.31 % 2.63 %
Custom Mail	4670 4727	3774 3749	786 860	110 118	80.81 % 79.31 %	16.83 % 18.19 %	2.36 % 2.50 %
iCloud Mail	4601 4743	3413 3490	1077 1130	111 123	74.18 % 73.58 %	23.41 % 23.82 %	2.41 % 2.59 %
Tuta	4704 4845	3733 3787	858 938	113 120	79.36 % 78.16 %	18.24 % 19.36 %	2.40 % 2.48 %
Juno.com	4751 4791	3746 3767	888 901	117 123	78.85 % 78.63 %	18.69 % 18.81 %	2.46 % 2.57 %
Mailfence	4794 4628	3775 3626	904 884	115 118	78.74 % 78.35 %	18.86 % 19.10 %	2.40 % 2.55 %

Compare SendGrid with other providers

Compare the email deliverability of SendGrid with other providers.