FREE expert advice on setup, maintenance, and troubleshooting
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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Pressable
Pressable’s built-in relay sends WordPress mail without a plugin; 200 emails/hour and 4 unique sender addresses per 24 hours. No bundled mailboxes. Titan add-on at $3.50/inbox/month.
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Flywheel
Flywheel routes wp_mail through SendGrid without a plugin. Daily sending limits are undisclosed. Port 25 blocked; 465 and 587 open. No bundled mailboxes or forwarding.
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DreamHost
DreamHost bundles email with DreamPress; shared plans charge $1.99/mailbox/month after 3 months. PHP mail() unsigned; port 25 blocked. 100 recipients/hour cap.
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Bluehost
Bluehost includes domain email on all WordPress plans. Default wp_mail uses PHP mail(), unsigned. Sending limit is 500 emails/hour per domain. SMTP ports open.
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Troubleshooting WordPress email: a reference
WordPress email breaks at one of four stages in the delivery chain. The symptom (silent send, bounce, spam placement) does not tell you which stage. The diagnostic method is to find the stage first.
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DMARC for WordPress email: policy, alignment, and reports
DMARC is the DNS record that tells receivers what to do with mail that fails SPF or DKIM, and where to send reports about the failures. For WordPress sites, it is also the record Gmail and Yahoo now require.
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SPF for WordPress email: what the record does and how it fails
SPF is the DNS TXT record that lists the servers allowed to send mail from your domain. Receivers check the sending IP against the list, and the record is where WordPress operators tell Gmail and Outlook which relay the site uses.
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iThemes Hosting (Discontinued)
iThemes Hosting was a managed WordPress hosting product on Liquid Web infrastructure. Discontinued after the iThemes brand folded into SolidWP, then into the Liquid Web Kadence Add-ons Bundle in 2026.
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Maileroo as a WordPress SMTP Server
Maileroo is an Australian-owned, EU-resident transactional relay – 3,000 emails/month free, then $10 for 25,000, $15 for 50,000. Undercuts SMTP2GO and MailerSend at every tier, with feature parity across paid plans.
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SendPulse as a WordPress SMTP Server
SendPulse SMTP for WordPress: 12,000 emails/month free, $7.85 for 25K paid, EU-resident sending, and a 24-hour profile approval before the SMTP endpoint activates.
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MailerSend as a WordPress SMTP Server
MailerSend is the MailerLite team’s transactional relay – 500 emails/month free, Hobby at $7/month for 5,000, Starter from $35 for 50,000. Priced above SMTP2GO but cleaner than most marketing-first platforms for WordPress transactional email.
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WordPress.com vs WordPress.org Email: Who Owns the Sending Pipeline
On WordPress.com, Automattic owns wp_mail’s transport and the sending domain. On self-hosted WordPress.org, the operator owns both. Every email-behaviour difference between the two platforms follows from that.