--- title: Email description: 10 Email articles — guides and explainers from the WatchFor team. canonical: https://watchfor.io/blog/category/email --- [All posts](/blog) # Email Guides, how-tos, and updates on Email. [All](/blog)[Monitoring](/blog/category/monitoring)[Networking](/blog/category/networking)[Performance](/blog/category/performance)[Security](/blog/category/security)[Reliability](/blog/category/reliability)[Email](/blog/category/email)[DevOps](/blog/category/devops)[Engineering](/blog/category/engineering)[Guides](/blog/category/guides) [All articles](/blog/all) 10 article s [EmailOct 20, 2026 ## Email deliverability monitoring: every check was green and the mail still wasn't arriving SMTP up, mailbox fine, SPF published, and the password resets landed in spam all weekend. Email deliverability monitoring sends real mail to find out.WatchFor Team7 min read](/blog/email-deliverability-monitoring)[EmailOct 05, 2026 ## How to test email delivery end to end (and keep testing it) Your mail server is up, the SMTP login works, SPF, DKIM and DMARC are in place, and the password-reset email still doesn't arrive. The only test that proves delivery is sending a real message and finding it in the mailbox. Here's how an email round-trip test works, what it measures (delivery time, Inbox or Spam, every relay hop), what a real result looks like and how to read it.WatchFor Team5 min read](/blog/how-to-test-email-delivery)[EmailOct 05, 2026 ## IMAP and POP3 monitoring: how to know when a mailbox stops working A mailbox can stop working while the mail server looks perfectly healthy: the password was rotated, the certificate expired on port 993, or the form that should email you every day quietly stopped. IMAP and POP3 monitoring logs in the way a mail client does and tells you which one it is. Here's what to check, what the results look like and how to test it yourself with openssl.WatchFor Team6 min read](/blog/imap-pop3-monitoring)[EmailOct 05, 2026 ## SMTP monitoring: is your mail server still accepting and sending mail? Your shop's order confirmations, password resets and invoices all leave through one SMTP login. When that login breaks, nothing errors on your website: the emails just don't go out. SMTP monitoring checks both halves of a mail server, the inbound side on port 25 and the sending login on 587 or 465. Here's what each one tells you, which port is which, and how to test it with openssl.WatchFor Team5 min read](/blog/smtp-monitoring-explained)[EmailApr 25, 2026 ## Email Authentication Explained: SPF, DKIM & DMARC If your emails land in spam — or scammers send mail pretending to be you — these three records are why. Here's what SPF, DKIM and DMARC do, how they work together, and how to set them up right.WatchFor Team4 min read](/blog/spf-dkim-dmarc-explained)[EmailMar 25, 2026 ## Email Blacklists (RBLs): why you're blocked and how to get off If your email suddenly stops arriving, a blacklist may be the culprit. Here's what RBLs are, how you end up on one, and the step-by-step to get off — and stay off.WatchFor Team3 min read](/blog/email-blacklists-rbl)[EmailDec 02, 2025 ## Why Your Emails Go to Spam (and how to fix it) Your perfectly legitimate emails keep landing in junk — and you have no idea why. Here's how spam filters actually decide, and the practical checklist to get back in the inbox.WatchFor Team3 min read](/blog/why-emails-go-to-spam)[EmailNov 30, 2025 ## How to Set Up DMARC (step by step) DMARC is what actually stops scammers spoofing your domain — but rushing it can block your own email. Here's the safe, staged way to roll it out from monitoring to full enforcement.WatchFor Team3 min read](/blog/dmarc-setup-guide)[EmailNov 28, 2025 ## Email Bounces: Hard vs Soft (and what to do about each) When an email can't be delivered, it 'bounces' — but not all bounces are equal. Here's the difference between hard and soft bounces, and why handling them right protects your deliverability.WatchFor Team3 min read](/blog/email-bounce-types)[EmailNov 26, 2025 ## BIMI Explained: your logo in the inbox BIMI puts your brand's verified logo next to your emails in supporting inboxes — a trust signal and an anti-spoofing reward. Here's what it is, what it requires, and whether it's worth it.WatchFor Team3 min read](/blog/bimi-explained) --- Canonical page: https://watchfor.io/blog/category/email · Site guide: https://watchfor.io/llms.txt