Amazon SES and Constant Contact Email Deliverability Comparison

In this comparison, the deliverability of Amazon SES 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 Amazon SES than for Constant Contact.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
147.513 540.483	126.367 412.262	16.682 107.687	4.268 21.069

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. Amazon SES beats Constant Contact in this comparison.

Inbox (%)	Spam (%)	Lost (%)
85.66 % 76.28 %	11.31 % 19.92 %	2.89 % 3.90 %

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, Amazon SES is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	11186 41392	9819 32657	1097 7282	265 1516	87.78 % 78.90 %	9.81 % 17.59 %	2.37 % 3.66 %
Elektronics	11494 41334	9925 31860	1212 7982	317 1525	86.35 % 77.08 %	10.54 % 19.31 %	2.76 % 3.69 %
Entertainment	11346 41622	9698 31703	1283 8295	332 1627	85.48 % 76.17 %	11.31 % 19.93 %	2.93 % 3.91 %
Cosmetics & Beauty	11330 41603	9693 31719	1275 8337	336 1612	85.55 % 76.24 %	11.25 % 20.04 %	2.97 % 3.87 %
Food & Drink	11366 41617	9929 32927	1136 7308	289 1447	87.36 % 79.12 %	9.99 % 17.56 %	2.54 % 3.48 %
Home & Garden	11559 41806	10118 32922	1153 7393	289 1550	87.53 % 78.75 %	9.97 % 17.68 %	2.50 % 3.71 %
Finance	11214 41990	9400 30775	1434 9514	361 1751	83.82 % 73.29 %	12.79 % 22.66 %	3.22 % 4.17 %
Health	11308 41038	9553 30441	1374 8947	360 1675	84.48 % 74.18 %	12.15 % 21.80 %	3.18 % 4.08 %
Pets	11313 42146	9786 32859	1204 7759	325 1559	86.50 % 77.96 %	10.64 % 18.41 %	2.87 % 3.70 %
Sport & Fitness	11426 41859	9682 31437	1374 8771	351 1692	84.74 % 75.10 %	12.03 % 20.95 %	3.07 % 4.04 %
Job & Career	11449 41297	9623 30826	1456 8756	343 1760	84.05 % 74.64 %	12.72 % 21.20 %	3.00 % 4.26 %
Dating	11062 41795	9262 30105	1442 9894	369 1829	83.73 % 72.03 %	13.04 % 23.67 %	3.34 % 4.38 %
Other	11460 40984	9879 32031	1242 7449	331 1526	86.20 % 78.15 %	10.84 % 18.18 %	2.89 % 3.72 %

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, Amazon SES is better than Constant Contact.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	11474 50783	9345 36942	1656 11716	426 2164	81.45 % 72.74 %	14.43 % 23.07 %	3.71 % 4.26 %
Outlook Mail	11153 50592	9452 37299	1373 11167	317 2163	84.75 % 73.73 %	12.31 % 22.07 %	2.84 % 4.28 %
Yahoo Mail	11456 50611	9776 38304	1320 10344	333 2014	85.34 % 75.68 %	11.52 % 20.44 %	2.91 % 3.98 %
AOL Mail	11250 49605	9582 37561	1313 10008	334 2072	85.17 % 75.72 %	11.67 % 20.18 %	2.97 % 4.18 %
Mail.com	11442 51145	9830 39324	1253 9909	336 1950	85.91 % 76.89 %	10.95 % 19.37 %	2.94 % 3.81 %
Yandex Mail	11194 51255	9448 38151	1392 11062	368 2129	84.40 % 74.43 %	12.44 % 21.58 %	3.29 % 4.15 %
GMX Mail	11352 50233	9878 38550	1154 9835	302 1862	87.02 % 76.74 %	10.17 % 19.58 %	2.66 % 3.71 %
Zoho Mail	11652 50707	10136 39469	1200 9484	308 1801	86.99 % 77.84 %	10.30 % 18.70 %	2.64 % 3.55 %
ProtonMail	11320 50988	9895 39687	1096 9564	292 1803	87.41 % 77.84 %	9.68 % 18.76 %	2.58 % 3.54 %
Custom Mail	11274 50909	9903 40142	1108 9036	258 1784	87.84 % 78.85 %	9.83 % 17.75 %	2.29 % 3.50 %
iCloud Mail	11349 11115	9388 8481	1571 2148	398 533	82.72 % 76.30 %	13.84 % 19.33 %	3.51 % 4.80 %
Tuta	11332 11128	9877 9001	1167 1722	302 420	87.16 % 80.89 %	10.30 % 15.47 %	2.67 % 3.77 %
Juno.com	11265 11412	9857 9351	1079 1692	294 374	87.50 % 81.94 %	9.58 % 14.83 %	2.61 % 3.28 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.