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Founder @ Sendmux.ai (Email Inbox API for AI Agents) & Qubrics.ai (voice-first AI assistant) | Spotzee.com (Marketing automation) | Gotta.blog (Share your thoughts).
Latest from Roshan Jonnalagadda · deliverability · spf include limit
RFC 7208 based checklist for admins and MSPs to avoid permerror and mail loss. Learn which mechanisms count toward the 10 DNS lookup limit, how to audit...
apis & sending · email to json
Convert raw MIME to validated JSON with a developer focused workflow: prefer schema first parsing, stream attachments to object storage, and follow...
alternatives · gmail api alternatives
Five Gmail API alternatives for developers building AI agents, plus a migration checklist for auth, threading, MIME and deliverability.
strategy · email deduplication
Practical guide for eDiscovery teams: normalize addresses, use SHA-256 body+attachment hashing, and keep custodian metadata and audit logs to make dedupe...
deliverability · smtp dsn codes
RFC and IANA aligned reference for developers to parse, log, and triage SMTP DSN codes. Learn when to retry, which Diagnostic-Code to preserve, and...
apis & sending · best transactional email service 2026
Developer-focused comparison of transactional email services. Learn to read deliverability tests, weigh DX (React Email, SDKs) versus cost, and see when...
deliverability · smtp submission vs relay
Developer guide: map RFCs to production patterns for SMTP submission vs relay. Six decision questions and practical troubleshooting for multi tenant systems.
deliverability · custom domain email setup
Small business roadmap for custom domain email: set DNS, SPF/DKIM/DMARC, test and migrate, and learn when an API inbox is the better choice.
deliverability · email rate limiting
Ops guide mapping Exchange and SES quotas and RFCs to practical controls: stream isolation, token bucket limits, safe retries, and Sendmux signals.
strategy · mailbox storage quotas
Admin guide to mailbox storage quotas: three thresholds, copy ready PowerShell commands, archiving and how agent mailboxes differ.
alternatives · Parseur alternatives
Developers: compare Parseur alternatives by schema enforcement, APIs, OCR support, and throughput. Run a 7–14 day, 20–30 document POC checklist to decide...
apis & sending · email metrics dashboard
Developer-focused, operational playbook for agent mailboxes. Maps six API backed panels to exact endpoints, queries, and alert rules so teams detect...
deliverability · dkim with multiple providers
A compact operations runbook for engineers: four repeatable steps to add and rotate DKIM selectors, avoid selector collisions, and keep SPF and DMARC aligned.
strategy · mailbox migration imap
Enterprise IMAP mailbox migration: preflight dry runs, large mailbox tactics, tool choices, and Sendmux for post migration automation.
deliverability · smtp 421 rate limited
Default to 587 with STARTTLS and keep 465 as a fallback. RFC aware, practitioner steps with OpenSSL and swaks tests and a five minute decision flow.
deliverability · dmarc rua ruf
Engineer-focused guide to using DMARC RUA as your telemetry stream, when to enable RUF, and the DNS, security, and enforcement steps you must run.
deliverability · tls vs starttls
TLS vs STARTTLS for mail admins: when to prefer implicit TLS (port 465/TLS 1.3), how to stop STRIPTLS with MTA‑STS and DANE, and a concise config checklist.
deliverability · gmail sending limits
Sendmux developer brief on Gmail sending limits: Free has a 50/day team cap, Pro's SES is 100/hr and 1,000/day. Learn token flow, routing, and batching to...
deliverability · bounce reason codes
An RFC backed reference for engineers to read SMTP and enhanced bounce reason codes, implement retry and suppression automation, and integrate with Sendmux.
apis & sending · email delivery webhooks
Developer first playbook for email webhooks: verify HMAC signatures, persist and dedupe events, ACK fast and enqueue work. Includes Sendmux inbox and SSE...
deliverability · high volume email
Engineering-first playbook for developers building high volume email for AI agents. Mailbox math, 25 sends/day ramp, 3–4 week warm-up, API primitives and...
deliverability · spf dkim dmarc
RFC aware, step by step deployment for SPF, DKIM and DMARC. Start at p=none with RUA reports, avoid the 10 DNS lookup SPF limit, then move safely to...
apis & sending · gmail labels vs folders
Developer first mapping of Gmail labels and IMAP/Outlook folders into a canonical RFC 9051 mailbox model. Avoid silent deletions and label-limit pitfalls.
deliverability · domain reputation monitoring
Operator playbook to protect inbox placement. Run three quick SPF/DKIM/DMARC checks, add provider dashboards, blocklist polling, engagement telemetry and...
alternatives · mailtrap alternatives
Compare Mailtrap alternatives built for autonomous agents. Find platforms that let agents self register inboxes, use scoped tokens, and run a POC with two...
deliverability · list unsubscribe header
Developer checklist to implement RFC 8058 one click List-Unsubscribe: add both headers, ensure DKIM signs them, use opaque tokens, and test POST endpoints.
alternatives · Knock alternatives
Developer comparison of Knock alternatives. Try Sendmux for agent owned persistent mailboxes, then evaluate Courier, Novu, and migration steps.
strategy · ses vs sendgrid
Developer TCO: compare SES and SendGrid at 100K–1M emails. See the ~$6,000 engineering cost, deliverability work, and a Sendmux mailbox option.
apis & sending · imap vs smtp
Developer focused IMAP vs SMTP guide. Learn what each protocol does, why ports 993/465 vs 143/587 matter, and how to troubleshoot send and sync with a...
alternatives · novu alternatives
Compare six Novu alternatives that put mailbox-first, per-agent mailboxes at the center. Evaluate pricing, MCP support, multi-tenant controls, failover,...
alternatives · onesignal alternatives
Developer focused comparison of OneSignal alternatives that give AI agents real mailboxes. Run the six step POC checklist and verify Sendmux's mailbox,...
apis & sending · proton mail smtp
Learn when to use Proton Mail direct SMTP tokens for servers and when to use Bridge for desktop clients. Never use your regular account password.
alternatives · courier alternatives
Compare Courier alternatives for AI agents and multi tenant platforms. Find providers with mailbox APIs, per tenant reputation controls, delivery routing,...
deliverability · verify email domain
Learn how to verify an email domain effectively with simple commands to ensure trust and security in your communications.
alternatives · sendgrid alternatives
Discover the best SendGrid alternatives for AI agent platforms, including mailbox-first solutions that simplify email infrastructure.
alternatives · nylas alternatives
Discover the best alternatives to Nylas for developers in 2026. Explore options tailored for email access, CRM, and scheduling needs.
agents & inboxes · ai agent mailbox
Discover how an AI agent mailbox enhances autonomy, safety, and deliverability with dedicated addresses and robust API access for better workflow.
strategy · cold email infrastructure
Build reliable cold email infrastructure with strategic mailing practices that maximize inbox placement and enhance your outreach efforts.
alternatives · resend alternatives
Explore the best resend alternatives for developers, from Sendmux to Postmark. Find the right solution for your email needs today!
alternatives · amazon ses alternatives
Explore top alternatives to Amazon SES for developers in 2026, offering tailored solutions for transactional and marketing emails.
apis & sending · email api pricing
Discover how email API pricing varies by volume. Learn cost-effective strategies to maximize your budget and streamline email delivery.
alternatives · agentmail alternatives
Discover the best AgentMail alternatives for developers, from Sendmux's robust inbox solutions to cost-effective options like Amazon SES.
apis & sending · best smtp providers
Discover the best SMTP providers for developers in 2026. Choose from Sendmux, Amazon SES, Mailgun, and Postmark for efficient email solutions.
alternatives · mailgun alternatives
Discover 12 top Mailgun alternatives for developers in 2026, each tailored to enhance deliverability, cost, and transactional workload efficiency.
alternatives · sparkpost alternatives
Explore top SparkPost alternatives for enhanced deliverability, featuring options like Postmark and Sendmux tailored for developers and teams.
deliverability · email deliverability monitoring
Master email deliverability monitoring with effective strategies to enhance inbox placement, prevent reputation drops, and ensure seamless delivery.
alternatives · Missive like apps
Discover top Missive alternatives for building AI agents with programmable inboxes, featuring Sendmux and more tailored solutions.
agents & inboxes · how to streamline team inbox
Streamline your AI agents' communication with team inbox management, ensuring reliability and efficiency through API-driven solutions.
deliverability · domain verification email
Learn how to properly verify your email-sending domain using DNS, DKIM, and DMARC for secure and efficient message delivery.
alternatives · Postmark alternatives comparison
Discover top Postmark alternatives for developers in 2026, offering cost savings, enhanced features, and robust routing capabilities to meet your needs.
apis & sending · best vercel email api
Discover the best email APIs for developers in 2026. Compare features like real mailboxes, parsing, and delivery options to find your ideal choice.
strategy · transactional vs outreach
Learn the key differences between transactional and marketing emails. Understand their roles, compliance, and how to optimize your email strategy.
alternatives · Front alternatives
Discover top Front alternatives for AI agent mailboxes. Explore Sendmux, OpenAgent, and others to find the best solution for your team.
apis & sending · transactional email api
Discover how to seamlessly integrate a transactional email API in three simple steps, enhancing your app's email capabilities today.
apis & sending · batch email sending
Master batch email sending in 2026 with our practical guide. Learn key strategies to ensure inbox delivery and avoid spam filters.
agents & inboxes · ai agent email
Unlock the potential of AI agent email with Sendmux. Empower your agents to autonomously manage emails using an efficient API setup.