Postmark and SendGrid Email Deliverability Comparison

Postmark

SendGrid

In this comparison, the deliverability of Postmark 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 Postmark than for SendGrid.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
77.301 76.303	59.644 58.002	15.881 16.304	1.776 1.997

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. Postmark beats SendGrid in this comparison.

Inbox (%)	Spam (%)	Lost (%)
77.16 % 76.02 %	20.54 % 21.37 %	2.30 % 2.62 %

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, Postmark is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	6223 5965	4769 4487	1314 1329	140 149	76.64 % 75.22 %	21.12 % 22.28 %	2.25 % 2.50 %
Elektronics	5871 5985	4570 4561	1167 1263	134 161	77.84 % 76.21 %	19.88 % 21.10 %	2.28 % 2.69 %
Entertainment	5960 5627	4591 4248	1247 1238	122 141	77.03 % 75.49 %	20.92 % 22.00 %	2.05 % 2.51 %
Cosmetics & Beauty	5909 5894	4594 4530	1189 1201	126 163	77.75 % 76.86 %	20.12 % 20.38 %	2.13 % 2.77 %
Food & Drink	5893 5868	4518 4443	1249 1272	126 153	76.67 % 75.72 %	21.19 % 21.68 %	2.14 % 2.61 %
Home & Garden	6020 5755	4626 4323	1255 1277	139 155	76.84 % 75.12 %	20.85 % 22.19 %	2.31 % 2.69 %
Finance	5866 5902	4707 4678	1016 1065	143 159	80.24 % 79.26 %	17.32 % 18.04 %	2.44 % 2.69 %
Health	6028 5737	4852 4557	1041 1031	135 149	80.49 % 79.43 %	17.27 % 17.97 %	2.24 % 2.60 %
Pets	6083 5824	4634 4417	1310 1263	139 144	76.18 % 75.84 %	21.54 % 21.69 %	2.29 % 2.47 %
Sport & Fitness	5716 5806	4412 4418	1165 1236	139 152	77.19 % 76.09 %	20.38 % 21.29 %	2.43 % 2.62 %
Job & Career	5918 5890	4407 4309	1369 1422	142 159	74.47 % 73.16 %	23.13 % 24.14 %	2.40 % 2.70 %
Dating	5907 6018	4330 4339	1439 1532	138 147	73.30 % 72.10 %	24.36 % 25.46 %	2.34 % 2.44 %
Other	5907 6032	4634 4692	1120 1175	153 165	78.45 % 77.79 %	18.96 % 19.48 %	2.59 % 2.74 %

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, Postmark is better than SendGrid.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	5360 5318	3949 3857	1278 1331	133 130	73.68 % 72.53 %	23.84 % 25.03 %	2.48 % 2.44 %
Outlook Mail	5461 5423	4108 4041	1232 1244	121 138	75.22 % 74.52 %	22.56 % 22.94 %	2.22 % 2.54 %
Yahoo Mail	5550 5322	4209 3990	1223 1195	118 137	75.84 % 74.97 %	22.04 % 22.45 %	2.13 % 2.57 %
AOL Mail	5429 5577	4148 4194	1153 1233	128 150	76.40 % 75.20 %	21.24 % 22.11 %	2.36 % 2.69 %
Mail.com	5528 5353	4361 4129	1042 1089	125 135	78.89 % 77.13 %	18.85 % 20.34 %	2.26 % 2.52 %
Yandex Mail	5569 5352	4255 4026	1192 1185	122 141	76.41 % 75.22 %	21.40 % 22.14 %	2.19 % 2.63 %
GMX Mail	5418 5779	4051 4295	1244 1318	123 166	74.77 % 74.32 %	22.96 % 22.81 %	2.27 % 2.87 %
Zoho Mail	5521 5400	4308 4167	1088 1098	125 135	78.03 % 77.17 %	19.71 % 20.33 %	2.26 % 2.50 %
ProtonMail	5639 5471	4482 4286	1032 1046	125 139	79.48 % 78.34 %	18.30 % 19.12 %	2.22 % 2.54 %
Custom Mail	5386 5498	4313 4336	957 1018	116 144	80.08 % 78.87 %	17.77 % 18.52 %	2.15 % 2.62 %
iCloud Mail	5534 5408	4043 3906	1354 1364	137 138	73.06 % 72.23 %	24.47 % 25.22 %	2.48 % 2.55 %
Tuta	5675 5273	4483 4094	1062 1033	130 146	79.00 % 77.64 %	18.71 % 19.59 %	2.29 % 2.77 %
Juno.com	5728 5599	4584 4363	998 1079	146 157	80.03 % 77.92 %	17.42 % 19.27 %	2.55 % 2.80 %
Mailfence	5503 5530	4350 4318	1026 1071	127 141	79.05 % 78.08 %	18.64 % 19.37 %	2.31 % 2.55 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.