How to Fix the GiveWP Donor Email Not Sending Issue? [Step-by-Step Instructions]

The GiveWP Donor Email Not Sending Issue is a common problem for WordPress donation sites. When donor receipts or admin notifications fail to arrive, it hurts trust, reporting, and follow-ups. In most cases, the issue is not GiveWP itself but how WordPress handles outgoing emails. This guide explains why WordPress fails to send emails and shows how to fix the problem using SMTP, proper domain authentication, and reliable email services.

Key Causes and Fixes

• The GiveWP Donor Email Not Sending Issue often occurs because WordPress uses PHP mail, which many hosting providers restrict or block.
• Emails sent without authentication are frequently flagged as spam by Gmail and Microsoft Outlook.
• Missing or incorrect **SPF, DKIM, and DMARC** records prevent mail servers from verifying your domain.
• Using the **Post SMTP plugin** replaces PHP mail with authenticated SMTP delivery and provides clear error logs.
• Post SMTP supports major **SMTP service providers**, including Gmail, Microsoft 365/Outlook, Amazon SES, Zoho Mail, and Brevo.
• SMTP services offer better deliverability, higher sending limits, and improved inbox placement for donor emails.
• Testing email delivery after setup confirms that donor receipts and admin alerts are working as expected.
• For donation-heavy sites, detailed logs and delivery alerts help detect issues before donors report them.
• Nonprofits with high email volume or recurring donations can benefit from advanced monitoring by choosing **Upgrade to Post SMTP Pro Now**.

Helpful External Resources

• WordPress email troubleshooting guide: https://wordpress.org/documentation/article/faq-troubleshooting/#emails
• Microsoft email authentication overview (SPF, DKIM, DMARC): https://learn.microsoft.com/en-us/microsoft-365/security/office-365-security/email-authentication-about

Conclusion

Fixing the GiveWP Donor Email Not Sending Issue comes down to one core step: moving away from unreliable server mail and using authenticated SMTP with proper DNS records. By setting up SPF, DKIM, and DMARC and sending emails through trusted providers like Gmail, Microsoft 365, or Amazon SES, donation emails become consistent and trustworthy. With tools like Post SMTP and optional Pro features, WordPress donation sites can protect donor communication and keep campaigns running without email failures.

Blog: GiveWP Donor Email Not Sending issue