MailSlurp resources
Email API, deliverability, and QA engineering blog - Page 15
Tactical writing for teams building reliable email and SMS workflows in development, CI, and production operations.
Posts
Learn how to get a blue checkmark for your email in Gmail with BIMI and logos.
Gmail now supports BIMI and verified logos. This guide shows you how to get a blue checkmark for your email address in Gmail.
Read more technicalHow to debug excessive DOM size warnings in Lighthouse page audit
Websites with large DOM will use memory, cause long style calculations, and result in costly layout reflows. Learn how to reduce an excessive DOM size.
Read more technicalDMARC Record Tags Explained: Required Fields, Policy Modes, and Reporting
Understand DMARC record tags, what each value controls, and how to roll out policy changes safely without breaking legitimate mail.
Read more technicalHow to Create a BIMI Record (Requirements, DNS Setup, and Validation)
Create a BIMI DNS record to display your brand logo in supported inboxes. Learn DMARC prerequisites, SVG requirements, and validation steps.
Read more technicalUsing multiple SPF records for a single email domain is not recommended.
Multiple SPF records for the same domain: why you should avoid them and how to check if you have any. Learn from our experts' do's and don'ts.
Read more technicalWhat is Twilio? Products, use cases, pricing model, and alternatives
Learn what Twilio is, what Twilio does, its core products (SMS, voice, email, verify), and when teams evaluate alternatives.
Read more technicalTips for effective email reset templates
Best Practices for Secure Password Reset Emails: Tips for clear subject lines, temporary URLs, and contact info to help users regain access.
Read more technicalThe email unsubscribe link allows recipients to opt out of future emails.
Why you need email unsubscribe links: avoid frustrating customers, get valuable customer feedback, and stay compliant with anti-spam regulations.
Read more technicalMail Server Protocols Explained: SMTP, IMAP, POP3, and Modern Auth
A practical guide to email protocol roles: SMTP for sending, IMAP/POP3 for retrieval, plus TLS, submission ports, and OAuth2 for production systems.
Read more technicalEmail Honeypots Explained: How Spam Traps Damage Deliverability
Learn what email honeypots (spam traps) are, how senders hit them, and how to protect domain reputation with list hygiene and consent controls.
Read more technicalUsing animated email signatures can make emails more engaging and visually appealing.
Add an animated edge to your email communication with GIF signatures! Learn how to make your messages stand out with eye-catching animations."
Read more technicalTypo in Mass Email Marketing: What to Do After You've Already Hit Send
Oops! Correcting Mistakes in Your Marketing Emails: Tips on fixing typos and errors in your mass email without hurting your brand's reputation.
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