Field notes on AI-era growth, deliverability, voice, and messaging for developers and teams building on Orbit by Devotel.
Orbit vs Brevo: where the transactional envelopes tie (API + SMTP relay, domain authentication, deliverability), where Brevo's marketing list suite is its own scope, and the DNS-first migration sketch.
Orbit vs Mailjet: where the envelopes tie (API + SMTP relay, domain authentication, deliverability), where Mailjet's Passport builder still wins, honest scope, and the DNS-first migration sketch.
A transactional email shortlist for web developers, reduced to the six ESPs that survive an evaluation on stream separation, sending-identity modeling, suppression scope, and lifecycle webhooks — with honest where-the-specialist-wins notes on each.
Orbit vs Resend: what Resend's developer-ergonomics email API actually ships, honest cells from /compare/resend, when the email-only fit wins, migration framing, and pricing shape.
Orbit vs Amazon SES: what SES's low-cost send-side API actually ships, honest cells from /compare/amazon-ses, when the AWS-native fit wins, migration framing, and dedicated-IP questions answered.
Orbit vs Postmark: honest cells from /compare/postmark, what Postmark's transactional-only specialization buys, migration framing for a template-payload move, and when the incumbent still wins.
Orbit vs Mailgun: the deliverability-analytics moat, honest cells from /compare/mailgun, when the incumbent wins, migration framing, and a ClickSend-style SMS-gateway check for your email-vs-messaging boundary.
A feature-accurate comparison of SendGrid's dedicated email API against Devotel Orbit's omnichannel platform, where transactional email shares one account, one customer profile, and one bill with voice, SMS, WhatsApp, RCS, video, and AI agents.
Email deliverability is the share of your mail that actually reaches the inbox rather than the spam folder or a silent drop. It turns on four levers you control — SPF/DKIM/DMARC alignment, sender reputation, warmup, and bounce handling. This playbook walks the checklist a transactional-email operator runs in Devotel Orbit, as tenant-side controls you own, not platform-mandated claims.
Transactional email breaks differently than marketing email, and the controls that keep it healthy are tenant-owned. How Orbit models a sending identity — a domain, default From fields, reply-to, a sending-stream assignment, and a live DNS-verification state — and why that model is what protects deliverability when email shares an account with SMS, WhatsApp, and voice.
Start free and ship your first voice, messaging, or email flow today, or talk to our team about your rollout. No annual contract, one pay-as-you-go bill across every channel.