Postmark and SendGrid Email Deliverability Comparison

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
70.968 71.595	58.513 56.977	9.753 11.590	2.702 3.028

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 (%)
82.45 % 79.58 %	13.74 % 16.19 %	3.81 % 4.23 %

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	5537 5599	4670 4601	662 803	205 195	84.34 % 82.18 %	11.96 % 14.34 %	3.70 % 3.48 %
Elektronics	5505 5565	4609 4451	710 862	186 252	83.72 % 79.98 %	12.90 % 15.49 %	3.38 % 4.53 %
Entertainment	5319 5483	4371 4368	741 895	207 220	82.18 % 79.66 %	13.93 % 16.32 %	3.89 % 4.01 %
Cosmetics & Beauty	5459 5550	4481 4421	760 900	218 229	82.08 % 79.66 %	13.92 % 16.22 %	3.99 % 4.13 %
Food & Drink	5286 5506	4509 4509	615 785	162 212	85.30 % 81.89 %	11.63 % 14.26 %	3.06 % 3.85 %
Home & Garden	5504 5540	4690 4516	635 791	179 233	85.21 % 81.52 %	11.54 % 14.28 %	3.25 % 4.21 %
Finance	5547 5409	4403 4165	882 990	262 254	79.38 % 77.00 %	15.90 % 18.30 %	4.72 % 4.70 %
Health	5399 5405	4378 4235	795 927	226 243	81.09 % 78.35 %	14.72 % 17.15 %	4.19 % 4.50 %
Pets	5541 5395	4634 4359	706 818	201 218	83.63 % 80.80 %	12.74 % 15.16 %	3.63 % 4.04 %
Sport & Fitness	5361 5705	4375 4470	794 987	192 248	81.61 % 78.35 %	14.81 % 17.30 %	3.58 % 4.35 %
Job & Career	5466 5520	4371 4267	862 1012	233 241	79.97 % 77.30 %	15.77 % 18.33 %	4.26 % 4.37 %
Dating	5448 5526	4352 4257	862 998	234 271	79.88 % 77.04 %	15.82 % 18.06 %	4.30 % 4.90 %
Other	5596 5392	4670 4358	729 822	197 212	83.45 % 80.82 %	13.03 % 15.24 %	3.52 % 3.93 %

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	5436 5348	4170 3956	988 1108	278 284	76.71 % 73.97 %	18.18 % 20.72 %	5.11 % 5.31 %
Outlook Mail	5238 5456	4220 4223	802 965	216 268	80.57 % 77.40 %	15.31 % 17.69 %	4.12 % 4.91 %
Yahoo Mail	5421 5540	4433 4391	778 919	210 230	81.77 % 79.26 %	14.35 % 16.59 %	3.87 % 4.15 %
AOL Mail	5516 5714	4503 4483	787 953	226 278	81.64 % 78.46 %	14.27 % 16.68 %	4.10 % 4.87 %
Mail.com	5408 5508	4479 4406	721 863	208 239	82.82 % 79.99 %	13.33 % 15.67 %	3.85 % 4.34 %
Yandex Mail	5347 5447	4318 4234	814 964	215 249	80.76 % 77.73 %	15.22 % 17.70 %	4.02 % 4.57 %
GMX Mail	5484 5398	4626 4415	665 782	193 201	84.35 % 81.79 %	12.13 % 14.49 %	3.52 % 3.72 %
Zoho Mail	5625 5510	4750 4478	689 810	186 222	84.44 % 81.27 %	12.25 % 14.70 %	3.31 % 4.03 %
ProtonMail	5409 5586	4615 4631	611 774	183 181	85.32 % 82.90 %	11.30 % 13.86 %	3.38 % 3.24 %
Custom Mail	5524 5466	4718 4485	628 769	178 212	85.41 % 82.05 %	11.37 % 14.07 %	3.22 % 3.88 %
iCloud Mail	5547 5572	4341 4238	961 1095	245 239	78.26 % 76.06 %	17.32 % 19.65 %	4.42 % 4.29 %
Tuta	5570 5511	4705 4486	682 807	183 218	84.47 % 81.40 %	12.24 % 14.64 %	3.29 % 3.96 %
Juno.com	5443 5539	4635 4551	627 781	181 207	85.16 % 82.16 %	11.52 % 14.10 %	3.33 % 3.74 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.