Not recommended First I wanted to connect Google Firebase to import authenticated users to mailersend. But the extension doesn't do anything, contacts still need to be imported manually. After trying to import contacts manually, mailersend tells me to upgrade because I cannot import users without credits. After upgrading, mailersend tells me that the subscription doesn't do anything for new contacts, but I need to buy credits to import them für 250$. After requesting mailersend to refund my money, they told me that they never refund money.

Impressive support people I am just testing the suitability of mailer send, but great software is only as good as the support. I ran into a question and given I am currently only on a free account I was amazed to get a response within half an hour which allowed me to continue working. And it was from a human being !!!

Great service and support Powerfull and very well documented tools : i'm not a pro coder, just need a trusty email service for my business and found no problem configuring my domain dns to start and implementing their API and webhooks in my webapp. Really great and fast support.

Great Tech Support Was able to open a ticket via chat and have the rep get back to me after the issue had been researched. Didn't have to waste an hour on chat like some other places that won't let you open up a ticket. The rep got back to me quickly with the correct information the first time.

Same as others, account suspended Same as others. Set up an account and configured wait list page to store email addresses and send thank you emails. Got hit by a bot over the Xmas period and account suspended due to high bounce rate. Added extra checks in to make sure email address has valid DNS, RFC compliant and Google ReCaptcha. Have tried multiple times to contact them but have no replies. Will look for a better alternative.