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Your WordPress email problems solved
Welcome to nanoPost, or, as we’d like to think of ourselves, The WordPress Email Authority. Our mission is to help you solve your WordPress email problems, whether it’s setting up, maintaining, or troubleshooting. Our expert guides, Q&A, reviews, and news on WordPress SMTP, contact forms, and more are here to provide you make the best choices.
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Recent Q&A’s
Recently Updated
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Brevo (Sendinblue) as a WordPress SMTP Server
Brevo’s free tier sends 300 emails/day from WordPress via SMTP or API. A marketing platform that also handles transactional email – good fit for some sites, more platform than others need.
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Best WordPress SMTP plugins: WP Mail SMTP vs FluentSMTP vs Post SMTP
WP Mail SMTP, FluentSMTP, and Post SMTP compared by use case. Free vs paid feature splits, where each plugin is the wrong choice, and the also-rans.
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Post SMTP review
Post SMTP is the WordPress mailer plugin that pushes failed-send alerts to a mobile app. Logging, OAuth, and a fallback SMTP connection ship in the free version.
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Best Amazon SES plugin for WordPress: WP Offload SES vs FluentSMTP vs WP Mail SMTP Pro
The six WordPress mailer plugins with native Amazon SES support, compared by fit. Which is free, which needs Pro, and where each one is the right choice.
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Best WordPress email log plugins for 2026: 5 tested picks
Five WordPress email log plugins compared by hook path, resend action, and price. Which is free, which needs Pro, and where each one is the right choice.
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Microsoft 365 as a WordPress SMTP Server
Microsoft 365 can relay WordPress mail through Exchange Online via SMTP AUTH or OAuth. Per-mailbox cap is 10,000 recipients per day, 30 messages per minute. SMTP AUTH Basic Authentication is default-off on existing tenants from the end of December 2026; OAuth is the only path that survives the cutoff.
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ARC for forwarded WordPress mail: what the chain is and who trusts it
ARC is the forwarder’s cryptographically signed record of what pre-forward authentication looked like. A receiver that trusts the forwarder can accept its attestation that SPF and DKIM passed before the hop, even when the current authentication state has broken on the forward.
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SRS for forwarded WordPress mail: what the scheme does and where it stops
SRS rewrites the envelope sender during a forwarding hop so SPF realigns at the destination against the forwarder’s own domain. For WordPress operators, it is the fix that keeps forwarded inbound mail from silently failing when the original sender publishes a strict DMARC policy.
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DKIM for WordPress email: how the signature works and how it fails
DKIM is the cryptographic signature a sending server attaches to each outgoing message, verifiable against a public key published in DNS. For WordPress operators, it is the authentication method that survives forwarding and the one that carries DMARC alignment through most relay configurations.
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Netcore Email API (formerly Pepipost) as a WordPress SMTP Server
Netcore Email API (formerly Pepipost) is an enterprise-focused relay. Pricing shifted to Growth and Enterprise tiers on the Customer Engagement Platform, billed by Monthly Tracked Users (Growth from ₹12,000/mo for 5,000 MTUs, channel delivery separate). Free tier allows 100 emails/day. Most WordPress sites should use simpler alternatives.
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FastComet
FastComet (WHG-owned since April 2025) tiers mailboxes 5/25/Unlimited/Unlimited and runs outbound through SpamExperts. SMTP open; no published sending limit.
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Cloudways
Cloudways provides no bundled email. Port 25 blocked; wp_mail() fails by default. Email requires the Elastic Email addon, Custom SMTP addon, or a WordPress SMTP plugin.