Constant Contact and SendGrid Email Deliverability Comparison

In this comparison, the deliverability of Constant Contact and SendGrid 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
455.754 62.600	344.481 49.846	93.172 10.115	18.101 2.639

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 (%)
75.58 % 79.63 %	20.44 % 16.16 %	3.97 % 4.22 %

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	35042 4926	27485 4050	6251 706	1306 170	78.43 % 82.22 %	17.84 % 14.33 %	3.73 % 3.45 %
Elektronics	34751 4870	26548 3891	6901 755	1302 224	76.39 % 79.90 %	19.86 % 15.50 %	3.75 % 4.60 %
Entertainment	35026 4832	26451 3841	7165 788	1410 203	75.52 % 79.49 %	20.46 % 16.31 %	4.03 % 4.20 %
Cosmetics & Beauty	35062 4831	26483 3848	7197 785	1382 198	75.53 % 79.65 %	20.53 % 16.25 %	3.94 % 4.10 %
Food & Drink	35174 4850	27683 3981	6246 691	1245 178	78.70 % 82.08 %	17.76 % 14.25 %	3.54 % 3.67 %
Home & Garden	35075 4866	27461 3970	6299 693	1315 203	78.29 % 81.59 %	17.96 % 14.24 %	3.75 % 4.17 %
Finance	35400 4748	25579 3655	8325 869	1496 224	72.26 % 76.98 %	23.52 % 18.30 %	4.23 % 4.72 %
Health	34611 4733	25334 3723	7833 810	1444 200	73.20 % 78.66 %	22.63 % 17.11 %	4.17 % 4.23 %
Pets	35515 4681	27532 3788	6653 703	1330 190	77.52 % 80.92 %	18.73 % 15.02 %	3.74 % 4.06 %
Sport & Fitness	35393 4964	26310 3898	7624 854	1459 212	74.34 % 78.53 %	21.54 % 17.20 %	4.12 % 4.27 %
Job & Career	34743 4779	25648 3691	7574 877	1521 211	73.82 % 77.23 %	21.80 % 18.35 %	4.38 % 4.42 %
Dating	35344 4790	25058 3681	8702 863	1584 246	70.90 % 76.85 %	24.62 % 18.02 %	4.48 % 5.14 %
Other	34618 4730	26909 3829	6402 721	1307 180	77.73 % 80.95 %	18.49 % 15.24 %	3.78 % 3.81 %

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	44239 4720	31905 3489	10444 979	1890 252	72.12 % 73.92 %	23.61 % 20.74 %	4.27 % 5.34 %
Outlook Mail	43937 4764	32041 3697	9961 842	1935 225	72.92 % 77.60 %	22.67 % 17.67 %	4.40 % 4.72 %
Yahoo Mail	44012 4881	33068 3866	9170 807	1774 208	75.13 % 79.21 %	20.84 % 16.53 %	4.03 % 4.26 %
AOL Mail	43244 5010	32467 3936	8913 834	1864 240	75.08 % 78.56 %	20.61 % 16.65 %	4.31 % 4.79 %
Mail.com	44440 4802	33930 3848	8781 748	1729 206	76.35 % 80.13 %	19.76 % 15.58 %	3.89 % 4.29 %
Yandex Mail	44557 4750	32851 3699	9829 836	1877 215	73.73 % 77.87 %	22.06 % 17.60 %	4.21 % 4.53 %
GMX Mail	43833 4695	33394 3848	8799 679	1640 168	76.18 % 81.96 %	20.07 % 14.46 %	3.74 % 3.58 %
Zoho Mail	44280 4771	34245 3879	8448 699	1587 193	77.34 % 81.30 %	19.08 % 14.65 %	3.58 % 4.05 %
ProtonMail	44514 4917	34397 4076	8521 679	1596 162	77.27 % 82.90 %	19.14 % 13.81 %	3.59 % 3.29 %
Custom Mail	44546 4805	34950 3942	8021 676	1575 187	78.46 % 82.04 %	18.01 % 14.07 %	3.54 % 3.89 %
iCloud Mail	4663 4874	3484 3717	923 956	256 201	74.72 % 76.26 %	19.79 % 19.61 %	5.49 % 4.12 %
Tuta	4649 4790	3767 3887	685 700	197 203	81.03 % 81.15 %	14.73 % 14.61 %	4.24 % 4.24 %
Juno.com	4840 4821	3982 3962	677 680	181 179	82.27 % 82.18 %	13.99 % 14.10 %	3.74 % 3.71 %

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.