rems C.
What a joke
What a joke. Prevents sending because of "spam score" even if their own spam scoring app shows otherwise. Then after loads of lost hours and frustration, I found that having a preheader prompts this error. What a load of crap.

All-in-one platform to send emails, manage contacts, capture leads and automate your marketing. Engage your customers at every stage of their lifecycle with data-driven email marketing and trigger-based powerful marketing automation.
SendMails - Email Marketing & Automation (sendmails.io) has 18 customer reviews on Five Star Index, with an average rating of 1.7 out of 5.
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rems C.
What a joke. Prevents sending because of "spam score" even if their own spam scoring app shows otherwise. Then after loads of lost hours and frustration, I found that having a preheader prompts this error. What a load of crap.
Ramesh
Sendmails.io is a costly copy of $44 Acelle - Email Marketing Web Application. They simply copied Acelle product and rebranded as Sendmails and they don't have any server to send emails and we have to use third party SMTP servers Amazon SES, Sendgrid and other APIs to send emails. It will costs extra min. $25/ month for us. Sendmails just offering list storage and doing nothing. Sendmails charging huge amounts starting $25 per month and $150 lifetime plan by tricking Amazon SES for $1(actually its $25 per month if you send 10k/per day) and You have to bear extra charges for sending emails. This is looting and You can't send any emails as they don't reply to your emails after purchasing plan. You can do the same work using Acelle - Email Marketing Web Application for sending emails. You can buy Acelle for $44 only on codecanyon or on Acellemail website Don't buy Sendmails.io plans and waste your money..!! Once you buy, Sendmails.io don't give any refunds!
NextGen W.
It is a replica of ACELLE MAIL SAAS sofware provided by Code Canyon OFFICIAL WEBSITE which is priced for 50$ ONLY at the official website and he is asking 150$ lifetime. Really. Why Pay the amount if the original debeloper is giving full software in just 50$ price with full acces. Only u have have configure and add into your own website sub-domain or use wix subsomain for free. He has just rebrabded the original developer
Stéphane V.
I purchased SendMails.io LTD for $399 by the end of May 2025 for 100K subscribers, expecting professional email marketing service. ISSUES EXPERIENCED: - ALL emails from SendMails.io go directly to SPAM (June 17-19, 2025) - Not just my main domain - EVERY domain using SendMails.io affected - Service worked for sending 2 emails after technical fixes, then failed again - 100% deliverability failure - emails never reach inbox but go directly to spam folder BUSINESS IMPACT: - 20,000 subscribers unreachable - Complete email marketing breakdown - Forced to abandon platform and return to previous provider that I use successfully with Amazon SES since 5 years - Significant revenue loss from non-functional campaigns CUSTOMER SERVICE FAILURE: - Refused refund despite total service breakdown - No permanent solution for systematic SPAM issues - Unprofessional and very slow response to legitimate complaints about broken service - Only response from customer service is "We are here to help" as an excuse to reject refund claim for non functioning service. This is not a minor issue - it's complete service failure. When ALL emails go to SPAM, the service is worthless. Losing $399 for a completely non-functional product. UPDATE: Still waiting for reasonable response from support team. Their only response so far is "As there have been no further updates or queries, we’ll be closing this ticket for now." Clearly a dishonest company. The proof that they are dishonest is that most of their reviews are fake. If you look closely, you'll noticed that some reviews are duplicated with different names. And you'll also notice that most of them have quite the same length (2 or 3 lines max) which is a very bad sign. I recommand Trustpilot to monitor this account closely.
S to the M to the S.
Fraudulant, promises refund as their platform do not work correctly, been over 1 month, no refund ust lies and excuses! AVOID this service!!!
William B.
If you’re serious about email marketing, SendMails is a must-have tool. The features are top-notch, the pricing is unbeatable, and the ease of use makes it accessible for both beginners and pros. It’s really elevated my marketing game.
Emilio B.
Refuse to pay monthly for anything. SendMails? Paid once in 2021. Still works. Automation’s not fancy, but my e-com store’s repeat buyers doubled.
Evan V.
website not working anymore, still taking the money, do not buy
Response from SendMails - Email Marketing & AutomationFeb 4, 2025
Hi Evan, We appreciate you bringing this to our attention. We truly apologize for any inconvenience you may have experienced if the site appeared unreachable. Our team continuously monitors the platform to ensure stability, and as of now, it should be fully operational. We want to assure you that we never charge customers for services they cannot access. If you believe you’ve been billed incorrectly or had trouble accessing your account, please reach out to our support team directly. We’re here to help investigate any issues and make things right. Thank you for sharing your feedback—your input helps us improve, and we hope to have the opportunity to restore your confidence in our service.