Sultan Nawab The best WordPress SMTP settings to use when configuring an SMTP plugin within WordPress when you’re using Fist Host WordPress Hosting are:
Outgoing mail server: smtp.stackmail.com
Outgoing server port (SMTP): 587
Use the following type of encrypted connection: TLS
Using these details will allow emails to be sent via SMTP from WordPress forms or allow any other SMTP-based plugins to send.
Using the correct WordPress SMTP settings ensures your contact form notifications, password resets, and order confirmations actually reach inboxes instead of spam folders. By default, WordPress sends email via PHP mail(), which many hosts restrict and which lacks authentication, causing deliverability problems. Configuring an SMTP plugin with proper authentication tells receiving servers that your messages are legitimate. These SMTP details above work with popular plugins like WP Mail SMTP, FluentSMTP, and Post SMTP.
To enter these WordPress SMTP settings, install your chosen SMTP plugin, then open its settings page and select ‘Other SMTP’ as the mailer. Enter smtp.stackmail.com as the SMTP host, 587 as the port, and choose TLS encryption. Enable authentication and enter your full mailbox address as the username along with your mailbox password. Save the settings, then use the plugin’s built-in email test feature to send a test message to yourself and confirm delivery.
If test emails fail after entering the correct WordPress SMTP settings, double-check for typos in the hostname and verify that your mailbox password is correct by logging into webmail. Ensure your hosting firewall allows outbound connections on port 587. Some plugins also offer a debug log that records the SMTP conversation, which helps identify authentication errors. For more WordPress tutorials, visit the Fist Host blog.
Always test after saving, and check your spam folder if the test message does not arrive within a few minutes. Contact FistHost support if email delivery issues persist after verifying your settings.
Frequently Asked Questions
Use outgoing mail server smtp.stackmail.com, port 587, and TLS encryption. These are the best WordPress SMTP settings for FistHost.
Make sure you are using the correct SMTP settings and that your SMTP plugin is configured. Always test after saving and check your spam folder.
Yes. To enter these WordPress SMTP settings, install your chosen SMTP plugin, then open its settings page and enter the details.
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Recommended SMTP Plugins
Any SMTP plugin that supports “Other SMTP” or custom SMTP will work with these settings. Popular choices include WP Mail SMTP, FluentSMTP, and Post SMTP — all free. After installing, choose the “Other SMTP” mailer option rather than a provider-specific one, since you are connecting directly to FistHost’s mail servers.
Improving Deliverability Further
Correct SMTP settings fix the sending side, but inbox placement also depends on DNS records. Consider adding an SPF record for your domain that authorizes our mail servers to send on your behalf — this single record noticeably reduces spam-folder placement. Avoid sending bulk newsletters through your hosting SMTP account; use a dedicated email marketing service for large lists to protect your domain’s reputation.
One last tip: after configuring SMTP, send test emails to Gmail, Outlook, and Yahoo addresses. Different providers filter differently, so testing all three confirms your mail reaches the major inboxes, not just one.
