Who gets the final say when the campaign team wants to hit send, but deliverability says no? Andy and Harry from @InboxArmy have different opinions. We brought them together on Mailtrap's Subject Line Blank podcast to debate it. Watch on YouTube: mailtrap.io/v2kj Prefer audio? lnkd.in/dar7PHZx

Prompt injection is phishing for the AI layer. Your next email may be classified, summarized, archived, or answered before the human even reads it. Eliezer Steinbock, Founder of Inbox Zero, joins Subject Line Blank to talk prompt injection, AI inbox agents, human-in-the-loop safeguards, and what senders need to rethink when the recipient is partly software. Watch on YouTube: l.rw.rw/episode15 Prefer audio? l.rw.rw/subjectlineblankep15

Mailtrap now has a dedicated community ✨ You can connect with other Mailtrap users and the Mailtrap team, share how you're using the product, troubleshoot together, and help shape what we build. Ask questions, swap tips, show off what you built, and talk directly to the team. Join us → community.mailtrap.io

Mailtrap Email Sandbox is now available on Salesforce AgentExchange. Turn on Testing Mode, and you see exactly what your Salesforce emails will look like, before they ever reach a Contact or Lead. No fake email addresses to create and clean up, and no chance a test reaches a live customer. Knowledge-base: docs.mailtrap.io/guides/inte… Salesforce x Mailtrap: appexchange.salesforce.com/a…

What happens when the threat is enterprise-level, but the security team isn’t? John LeMay breaks down BEC, AI, social engineering, security layers, and what SMBs can realistically do without an enterprise-sized team. Watch the full episode on YouTube: l.rw.rw/episode14 Prefer audio? Listen here: l.rw.rw/subjectlineblankep14

Did you know that API tokens can expire on your schedule? 1-365 days, a custom date, or never. Get alerts before expiry, and reissue an expired token for up to 90 days. Existing tokens aren't affected. Details: docs.mailtrap.io/email-api-s…

"Create an X post for developers who only know Mailtrap as just a sandbox. Tell them we do live sending API/SMTP and Email for Agents."

Automated Domain Reputation Monitoring is live. One dashboard to catch deliverability and security issues before they hurt your email performance, instead of checking multiple tools separately. You can monitor: Sending performance Bounce categories Google Postmaster data Domain setup Security & abuse Blocklist status Stay informed: critical alerts + weekly summaries. Learn more: docs.mailtrap.io/email-api-s…

We open-sourced mailtrap-local SMTP catcher + web sandbox in a single Go binary. Point your app at 127.0.0.1:3535, open :3550, see exactly what you sent. Checks your HTML against real mail clients too. MIT → github.com/mailtrap/mailtrap…

Recipient Tracking Opt-Outs are live! Give recipients a clear way to opt out of open and click tracking for emails sent from selected domains, built for CNIL, Garante, and other tracking-consent rules. Enable per domain, add the link, and manage opt-outs in-app or via API. Docs: docs.mailtrap.io/email-api-s…