Manon Q.
Ugly but cost effective
The UI is a bit clunky but price is far more reasonable than the other alternatives I found. Been doing a decent job with it so far.
Mails.ai is a transactional email API for developers and AI agents. It handles the everyday emails that apps and automated agents need to send and receive, like sign-in codes, receipts, order confirmations, notifications, and password resets, and it captures the replies as clean, structured data your app can act on. It is built for transactional, permission-based email: the messages a recipient asked for or expects. It is not a cold-email, bulk, or marketing tool. Emails are properly authenticated with deliverability handled for you, and incoming mail is checked for security threats before it reaches an AI agent. Developers connect in a few lines of code and can give an AI agent its own working email address in minutes.
Mails (mails.ai) has 19 customer reviews on Five Star Index, with an average rating of 3.0 out of 5.
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Manon Q.
The UI is a bit clunky but price is far more reasonable than the other alternatives I found. Been doing a decent job with it so far.
D C.
Ho perso diverse ore per configurare IMAP con Google Workspace. Dopo aver verificato che le mie credenziali e le App Password fossero corrette (funzionanti ovunque), la piattaforma dava persistenti errori 504. Il supporto, invece di verificare i loro server, mi ha indicato come unica soluzione un upgrade a un piano a pagamento per sbloccare la configurazione "Custom", solo per diagnosticare un problema che molto probabilmente era sul loro backend. Cercate alternative più serie. Un servizio che vi fa pagare per risolvere i propri errori è inaffidabile.
First A.
Their Email Warmup service does not work at all — no emails were ever sent from my mailboxes. I reached out to support but never received a real reply, only automated bot messages linking to generic guides. Complete waste of time and very disappointing experience.
Crusader
I do not give negative views lightly, but this company deserves it. After spending a considerable amount of time setting up my account to send 40 bulk marketing emails per day without worrying about being flagged by Gmail, Mails.ai failed in most ways. I put in a total of like 200 email addresses into their so-called Warmup feature from publicly available directories, some of which I had previously used to obtain some new clients. Sadly, this Warmup feature they offer is a total loss, and that is the feature I wanted the most. 100% of the emails were flagged "Unknown," which is useless for anyone who wants to clean up their email marketing lists. Even addresses that I had confirmed were incorrect due to recent use were flagged as "Unknown." So no point paying this company $50 per month for a service another company already provides for me.
Marcos C.
I been trying for more than a week to contact support and nothing. It's a disaster
Patrick H.
We paid for an email warmup campaign. Followed the guide to get it setup and after a month 2 emails have been sent! We sent multiple messages to the chat support function which were ignored complete waste of time and money.
Michael M.
Be careful, scammers. There is no support at all, and there is no option to cancel the subscription. I wrote to support several times. I need to figure it out with Stripe now to cancel it and get my money back.
Joshua D.
Terrible UX and campaign set up. You can't even send test emails. Was going to use for a new client, nearly lost them because I was faffing around with this sub par software. I've gone back to using woodpecker. I would avoid!