In my opinion, sendgrid is complete garbage compared to Postmark, it's not even a comparison. I had issues with emails being sent to spam using sendgrid IPs. The dashboard is inferior, the setup is fairly comparable in difficulty, and ongoing visibility is inferior.
Verified User
Engineer
Chose Postmark
I've also used AWS Simple Messaging Service (SES) but couldn't select it from the above, as well as the old one Mailchimp used to run and shut down. We had big deliverability issues with those services, inconsistent but often for self-hosted email providers and free email …
They are a bit different and, in many cases, it makes sense to use both Postmark and Mandrill. Aside from these two, I don't have experience with other email delivery services. Both tend to be extremely reliable and rarely fail to send and deliver emails. Both are …
We found Postmark early on and have not looked back. There has never been a need to reevaluate the solution, as its cost is fair and the service has functioned as expected. We regularly recommend Postmark to our partners.
We felt Postmark's focus on transactional emails and their use of shared domain reputation made them stand out. We also like their user interface and ability to have many virtual email servers. Pricing was competitive and after a trial we saw a big increase in deliverability …
In terms of UI and deliverability, Postmark really blows other ESPs out of the water. We've seen a huge improvement in delivery rates, especially for Outlook/Live/Hotmail email addresses.
If email deliverability is important, then Postmark is king. I've used all sorts of providers, with dedicated IPs and without. Postmark has always had the best deliverability and has resulted in the least amount of customer service time wasted dealing with users who simply did not receive an important email from us. It is pricier than other options, but it's well worth it if deliverability is at all important to you.
The only thing that confused me initially was that if you don't put a specific sender email into the Wordpress plugin settings (I use Postmark exclusively with Wordpress site), it won't send emails. I thought that having selected the option to send via any @domain.com email, I wouldn't need to fill out a specific email to send from, but that isn't the case. I sorted that out quickly with support.
Postmark has been an excellent solution for our business needs. We have been with them for years and have no intention of changing providers anytime soon. Support was excellent as we were getting started and their API documentation made implementation quick and easy
We felt Postmark's focus on transactional emails and their use of shared domain reputation made them stand out. We also like their user interface and ability to have many virtual email servers. Pricing was competitive and after a trial we saw a big increase in deliverability rates. Therefore it was an easy decision to use Postmark over other providers.