WP Mail SMTP Blog

Tutorials and tips to help you grow your business with WordPress

Recent Posts

How to Send WordPress Emails with Resend

How to Send WordPress Emails with Resend (Step by Step)

Your WordPress site says the email sent, but the receipt never reaches your customer.

By default, WordPress mail leans on PHP, and hosts and spam filters quietly block it. WP Mail SMTP fixes that by routing your mail through reliable, authenticated servers.

Here’s how to connect Resend with the WP Mail SMTP Setup Wizard.

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Postmark review

Postmark Review: Features, Pricing & Deliverability (2026)

You’ve heard Postmark has a reputation for getting transactional email to the inbox, but the pricing page and feature list never tell you whether it’s right for your site.

Will it actually fix your deliverability, and does it play nicely with WordPress? We ran test sends through Postmark on three WordPress sites to find out.

Here’s the honest review: its real pricing tiers, deliverability record, the features that matter, the pros and cons, and exactly how to connect it with WP Mail SMTP.

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Try our Free WP Mail SMTP plugin

Use your favorite SMTP provider to reliably send your WordPress emails.

How to test email deliverability

How to Test Email Deliverability (Step-by-Step Guide)

Your emails say they’re sending. The logs look clean, the success message pops up, and everything seems fine. Then a customer asks why they never got their password reset, and you realize your mail has been quietly landing in spam for weeks.

Testing your deliverability turns that guesswork into a clear score you can act on.

Here’s the full process, step by step. Run a spam score test, check your SPF, DKIM, and DMARC records, send a real test from WordPress, and read an inbox placement report.

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