SendGrid is a transactional email service with API + SMTP and a delivery focus. It is solid for sending, with cost and dedicated infrastructure scaling with volume.
Verdict: SendGrid is a capable transactional email API, though cost and delivery control improve only past the free tier.
Pros
REST API + SMTP relay, both
Deliverability and inbox placement focus
Webhooks for opens, clicks, bounces
Cons
Free tiers are small (100s/day)
Pricing scales up fast at volume
Shared IPs can hurt deliverability on cheaper plans
SendGrid is rated "Bad" with 1.1 / 5 on Trustpilot
# SendGrid Reviews 537•
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I have been using the sendgrid platform and it works well when you can log in but have not been able to login for 3 days due to this stupid 2 factor authorisation system they have.
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Sendgrid is the worst email marketing company ever.
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I am compelled to share my recent experience with SendGrid, which turned from mildly frustrating to utterly disappointing, affecting not just me but all of my clients.
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While I understand the importance of security measures, SendGrid's response was beyond what one could consider reasonable—they suspended ALL my API keys.
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In conclusion, if reliability, prompt support, and understanding are qualities you seek in a service provider, my recent experience suggests that SendGrid might not be the best choice.
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SendGrid blocked my request for account almost immediately on the click of the button and the are refusing to tell me why under the cover of security.
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There is lots of serious email delivery providers, try thoose, avoid sendgrid at all cost
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Our business receives TONS of SPAM through sendgrid.
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The scam is Sendgrid itself.
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I’m a sendgrid costumer.
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Here is the message I got “Twilio SendGrid takes the security and integrity of our platform very seriously.
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Our Sendgrid API blocked for 2 weeks without any reason, support does not answer at all.
SendGrid Reviews | Read Customer Service Reviews of sendgrid.com
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# SendGrid Reviews
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## Sendgrid floods us with spam…
A Sendgrid customer floods us with spam and phishing daily.
As Sendgrid does not accept spamcop reports any legit (if there are any) customer of Sendgrid may see RBL filters to limit the usability of this questionable service provider.
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However, SendGrid is only applying the downgrade from next month, which means I’m being charged around USD 15 for a service I neither need nor used.
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## OuOur account was hacked, they charged US$16,000 for the attacker's emails, then locked us outr SendGrid account suffered an…
Our SendGrid account suffered an account takeover — which SendGrid's own support team acknowledged in writing as an "Account Takeover" and "fraudulent activity" within our API traffic.
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Instead of treating us as the victims of an attack, SendGrid billed us US$16,406.54 for the traffic the attacker generated — and took it from our card, despite our clear written objection and after the ticket had been marked resolved.
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Tried to report the many emails I get from them to the company (this site won't let me post the email but it starts with abuse then the and sign then sendgrid.com) and they said there was no way they would open these emails that I attached because of security.
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Do not ever use SendGrid for your business.
SendGrid is rated "Bad" with 1.1 / 5 on Trustpilot
# SendGrid Reviews 537•
...
I have been using the sendgrid platform and it works well when you can log in but have not been able to login for 3 days due to this stupid 2 factor authorisation system they have.
...
Sendgrid is the worst email marketing company ever.
...
I am compelled to share my recent experience with SendGrid, which turned from mildly frustrating to utterly disappointing, affecting not just me but all of my clients.
...
While I understand the importance of security measures, SendGrid's response was beyond what one could consider reasonable—they suspended ALL my API keys.
...
In conclusion, if reliability, prompt support, and understanding are qualities you seek in a service provider, my recent experience suggests that SendGrid might not be the best choice.
...
SendGrid blocked my request for account almost immediately on the click of the button and the are refusing to tell me why under the cover of security.
...
There is lots of serious email delivery providers, try thoose, avoid sendgrid at all cost
...
Our business receives TONS of SPAM through sendgrid.
...
The scam is Sendgrid itself.
...
I’m a sendgrid costumer.
...
Here is the message I got “Twilio SendGrid takes the security and integrity of our platform very seriously.
...
Our Sendgrid API blocked for 2 weeks without any reason, support does not answer at all.
SendGrid is rated "Bad" with 1.1 / 5 on Trustpilot
There’s no clear or straightforward way to cancel your subscription with SendGrid.
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# SendGrid Reviews 544•
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## Total nonsense.
My webshop relies on SendGrid, and when our digital download emails stopped working, we were abruptly told to create our own accounts.
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## Is this legal?
My advice to anyone reading this review is to avoid SendGrid.
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## Horrible company
Please use any provider that is not called sendgrid
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## I've been using SendGrid for a while
I've been using SendGrid for a while, and overall, I find their email delivery service to be quite reliable.
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It would be beneficial for SendGrid to streamline this process, making it more user-friendly and straightforward for new users who are eager to get started.
Moreover, since the Twilio acquisition, it seems that SendGrid's service quality has taken a hit.
While Twilio's involvement had the potential to enhance SendGrid's capabilities, I feel that instead, The integration of Twilio should have meant improvements and innovations, but I've not yet seen these materialize in a meaningful way.
In conclusion, while SendGrid remains a powerful tool for email delivery, the cumbersome signup process and post-acquisition issues with Twilio detract from its overall appeal.
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⭐☆☆☆☆ Beware: SendGrid Overcharges & Ignores Proof
I have used SendGrid for my email campaigns, but after being overcharged $300 for two consecutive months, I am absolutely appalled.
Despite sending only 17,500 emails in both January and February 2025, SendGrid falsely billed me for 225,000 emails each month.
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If you value transparent and honest billing, avoid SendGrid at all costs.
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DO NOT USE SENDGRID.
I strongly recommend staying away from sendgrid.com as they are legitimate scammers.
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# SendGrid Reviews 565•
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There’s no clear or straightforward way to cancel your subscription with SendGrid.
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Whois for sendgrid.net, .com, .org yields Markmonitor ownership with a Las Vegas location, b...I spent $1400 integrating our apps api with Sendgrid's transactional emails.
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Sendgrid used to be great some years back.
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I tried to contact sendgrid's tech support, it's been 2 weeks and I have received no response.
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Our email was not being delivered, so I investigated, it seems that sendgrid has a bunch of their IP addresses that have been added to blacklists.
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SendGrid has the least efficient support service.
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Unless you're willing to spend over $80 a month on a dedicated IP don't bother with SendGrid.
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Most of my emails are considered as spam with spamhaus because of sendgrid ip pools used by spammers.
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My account has problem about IP access and i sent 5 emails and i DM 7-8 for all Twilio and sendgrid account's and still they didnt solve my problem its been 3 days !!
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Overall, SendGrid gets the job done, but there are a couple of recurring issues that make the experience frustrating.
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My advice to anyone reading this review is to avoid SendGrid.26 February 2025Unprompted review
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Please use any provider that is not called sendgrid6 March 2025Unprompted review
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I've been using SendGrid for a while, and overall, I find their email delivery service to be quite reliable.
...
It would be beneficial for SendGrid to streamline this process, making it more user-friendly and straightforward for new users who are eager to get started.
...
I have used SendGrid for my email campaigns, but after being overcharged $300 for two consecutive months, I am absolutely appalled.
Despite sending only 17,500 emails in both January and February 2025, SendGrid falsely billed me for 225,000 emails each month.
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DO NOT USE SENDGRID.
