Email Warmup
So Your Emails Increases Sales,
Not Spams or Bans
No More Spams, Bans, our Bounces. Migrate from Sendgrid in 1 Click.
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Numbers Speak for Themselves
By Developers, For Developers
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All in One Solution So Your Emails
Increases Sales, Not Spams or Bans
SendGrid charges extra for basic features, and still goes to spam. Every email that misses the inbox costs you real money (lost customers, support tickets, wasted ad
spend). That’s why companies are switching to Maxify Inbox — the deliverability-first alternative that includes everything SendGrid charges extra for:
Email Warmup
Gradually build your sender reputation and avoid spam folders by warming up your email accounts and email sequences.
Email Validation
Verify every email on your list with real-time validation to reduce bounces, clean your database, and protect your deliverability score.
Email Replacement
Automatically swap invalid email addresses with verified, deliverable ones — without losing your precious leads.
Deliverability Consultants
Maxify doesn’t just offer you tools but email deliverability consultants to help you at every step of the way so your emails reach their desired audience and you achieve your goals.
Dedicated Servers
Send emails from your own dedicated IP addresses and server infrastructure — without sharing reputation with other senders.
Migrate in 1 Click
Get all your SendGrid email templates migrated in one click.
We Speak Your Language
Integrate with your backend in seconds. If you ever hit a roadblock, our developers have your back.
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What SendGrid is missing
SendGrid sends your marketing campaigns to spam and order confirmations to promotional tabs (killing conversions and creating support nightmares).
Companies switch to Maxify Inbox — the complete deliverability-first SendGrid alternative, that understand that all those flashy features aren’t worth much if your emails aren’t landing into your audiences’ inbox.
| Maxify | Sendgrid | |
|---|---|---|
| Email Warmup | Account-Level | IP-Only (Pro Plans) |
| Email Validation | Unlimited | Paid API Only |
| Email Replacement | Unlimited | Unavailable |
| Dedicated IP | Included by default | Pro Plans Only |
| Deliverability Support | Included | Paid Expert Services |
| Email Sequences | Included | Unavailable |
SendGrid Sends Your Emails to Spam, Maxify Sends Them to Customers
SendGrid provides automated IP warmup for dedicated IPs (available on Pro plans). Now, IP warmup tells Gmail and Outlook that your server can be trusted, but your individual email accounts still remain cold and untested (and will likely hit spam). Maxify warms up your actual email accounts (GPT-4 powered automation that mimics human behavior) by creating real conversations that prove to email service providers that you’re a legit sender.
AI-content adaption
It adapts to your content using tried and tested automation and workflows, because we hate generic templates.
Scales like a human
Begins by sending emails slowly, and scales them automatically over time (just like a human would).
Auto-interaction
Improve your sender reputation by interacting with those emails (reads, replies, archives).
Ongoing reputation management
It keeps your warmup running indefinitely for ongoing reputation management so you never have to worry about deliverability again.
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SendGrid Validates Your List, Maxify Replaces Faulty Addresses
SendGrid offers a paid email validation API, but it only tells you what's wrong. It doesn't fix anything. Maxify replaces invalid emails with verified, deliverable addresses — turning dead leads into paying customers with higher open rates and, eventually, better ROI. Here’s what we do:
Keep deliverability high and data quality tight
Protect your sender domain from bounce penalties
Scan your entire list to detect invalid or risky emails
Replace up to 100 bad addresses monthly with no manual cleanup
Why companies switch to Maxify
"Switched from SendGrid after our password reset emails kept hitting spam. Maxify's warmup actually works. Iur delivery rate went from 60% to 94% in two weeks. No more angry users asking why they can't log in."
"SendGrid's support kept telling us to 'check our DNS settings' when emails bounced. Maxify's team found the actual problem in 20 minutes (reputation issues from shared IP)."
"Our SaaS sends 50k+ notification emails monthly. SendGrid worked until it didn't — then we'd lose days debugging deliverability. Maxify handles the reputation stuff automatically so we can focus on building features."
How Maxify compares with other SendGrid alternatives
We built Maxify Inbox to address the gaps that other platforms overlook:
| Features |  |  |  |  |  |
|---|---|---|---|---|---|
| Unlimited Email Warmup | Yes (both account) | No. Only IP warmup | No. Only IP warmup | No. Only IP warmup | No |
| Email Validation | Yes | Yes | No | No | Yes, via integration |
| Replacement of Invalid Emails | Yes (auto-replacement) | No (suppression/list tools) | No | No | No |
| Dedicated IP Address | Yes (included by default) | Available (paid) | Available add-on | Available (standard) | Available (paid add-on) |
| Deliverability Consultation | Unlimited & 24/7 | Expert/Optimize services | No | No | No |
| Deliverability Monitoring | Yes | Yes | Yes, but a focus on transactional | Yes | Yes, but very generic |
| Spam Checker Tool | Yes | Yes | Yes | No | No |
| Email API Integration | Yes | Yes | Yes | Yes | Yes |
| Support | Unlimited consultation | Paid deliverability | Basic support | Basic account/billing only | Standard live chat/email |
Frequently asked questions
about our email spam checker
Here’s everything you need to know about our free Chrome extension:
What’s Email Deliverability and why is it important?
How does email warmup work?
How many email deliverability tests can I run?
Do you provide Free email deliverability consultation?
How much time does it take to warmup?
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