ImprovMX vs. SendGrid

ImprovMX offers first-class email forwarding to your existing inbox, with additional advanced features. SendGrid is an API-first email sending platform for transactional and marketing emails that doesn't offer native inbound email routing.

Choose SendGrid if you need a fully featured API-based email sending service. Choose ImprovMX if you need email forwarding and need to do SMTP sending.

Feature
ImprovMX
SendGrid
Customer Support
Excellent Human & AI Support, 4.8-star Trustpilot rating
1.2-star Trustpilot rating, very poor reputation[2]
Inbound Email
Native email forwarding and inbound webhooks
Only offered as part of inbound webhooks
Transparent Pricing
Fully transparent and predictable pricing
Pricing page exists, but unexpected overage fees are common[2]
Free plan
Free-forever forwarding for one domain
Free plan limited to 60 days
Advanced Forwarding
Rules routing, Regexes and Webhooks[1]
Offers Webhooks
Webhook Types
Inbound email webhooks
Inbound email and event webhooks
Limits
Transparent limits, talk to us for uncapped limits
Transparent limits but hidden overage fees
Email Tracking
No open or click tracking
Full email engagement tracking
API
API manages domains, aliases and forwarding
API manages email sending, tracking & delivery
Email Send API
Not offered yet, but a send API is in progress
Offers a full REST sending API
Ownership
A sustainable profitable bootstrapped company
Acquired by Twilio, service has gone downhill since[3]
Compliance
GDPR compliant
SOC II, ISO, HIPAA, PCI DSS and GDPR compliant

[1] ImprovMX offers SMTP sending, rules routing, wildcard addresses, multiple recipient destinations, regex aliases and webhooks.

[2] SendGrid users cite slow or unresponsive support. Live chat is also limited to paid Email or Marketing Campaign plans, whereas ImprovMX offers live chat even for free users.

[3] SendGrid users cite service degradation since the Twilio acquisition.

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