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Answers for SMTP Server for WordPress: setup, DNS, forwarding, privacy and troubleshooting.
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SMTP Server for WordPress
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What does SMTP Server for WordPress do?
It is a WordPress GUI control layer for Postfix and supporting mail services. A separately installed, root-owned local agent manages scoped server operations; WordPress does not receive direct operating-system privileges. Administrators can…
What server do I need for Direct Mode?
Use a root-accessible, systemd Linux VPS or dedicated server running Ubuntu 22.04, 24.04 or 26.04 LTS, or Debian 12 or 13. You need root or sudo, outbound HTTPS, DNS control, a stable…
How do I get started safely?
Prepare a controlled supported server, backups, DNS access and required network paths.Install the WordPress plugin and choose the appropriate mode.For Direct Mode, review and run the generated version-matched one-time SSH agent command…
Which mail and network ports are required?
Direct delivery to recipient mail servers requires outbound TCP 25 allowed by both the VPS provider and firewall. Receiving mail or inbound forwarding also requires inbound TCP 25. Permit any additional submission,…
How do I configure SPF, DKIM, DMARC and MX?
Create the sender domain and follow its generated SMTP host, SPF, DKIM and DMARC plan. Inbound or bidirectional domains also receive an MX plan. Copy the records into your existing DNS provider,…
Can I automate Cloudflare DNS changes?
Yes, optionally. Create your own zone-scoped Cloudflare API token. The plugin stores it encrypted in WordPress and calls Cloudflare directly. Its automation preserves unrelated TXT records and existing SPF mechanisms, asks for…
Can it log WordPress email before delivery is configured?
Yes. Message Log captures each local wp_mail() attempt before routing, even before the agent, sender domain, DNS or mail takeover is ready. Bounded recipients, subject, body, headers and attachment file names are…
What inbound forwarding rules are supported?
Exact-address, plus-address, catch-all and multi-destination rules include destination verification, loop detection and expansion limits. Exact aliases take priority; catch-all starts disabled. Unknown recipients are designed to be rejected during SMTP rather than…
How are Relay Hub and Relay Client different?
A compatible WordPress hub accepts signed HTTPS submissions and operates the mail stack. A client connects selected domains over HTTPS/443 without a second local agent or Postfix installation. Credentials are scoped to…
Is the managed Fast Email Servers relay included?
No. The $299 product is a self-hosted control plane for infrastructure you operate. The separately operated premium managed relay remains deferred and is not included as an available service in release 0.8.57.The…
Why is mail not being delivered?
Check the local Message Log to confirm whether WordPress attempted the message.Review the agent and required service health, queue and scoped delivery events.Validate the sender domain’s SPF, DKIM and DMARC, SMTP hostname…
What does the purchase include, and how does support work?
SMTP Server for WordPress costs $299. Future product updates are free for life. Optional product support costs $99 per year and can be renewed for another year at $99. Updates remain included…
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