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SMTP works but emails vanish

FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider · support · 2026-03-03T06:39:00+00:00

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anavato resolved
SMTP test email succeeds, but real emails from my site (password reset + contact form) never arrive. I checked spam and logs show “sent”. Could you suggest what to verify next? It’s because the emails are indeed being sent. But most likely the receiving server drops them completely without even putting them in the spam folder. This usually happens due to misconfigured SPF/DKIM/DMARC DNS records related to the email you are trying to send from. You should look into fixing these. There are quite a few free online services that provide you with a temp email address where you can send an email and check what is problematic with your DNS setup. Hi @anavato , If your logs indicate that the emails are being “sent,” but they aren’t appearing in the recipient’s inbox or spam folder, it is highly likely that the receiving server is rejecting them before delivery due to authentication issues. Your intuition regarding SPF, DKIM, and DMARC records is spot on. If these DNS records are missing or misconfigured, the receiving server cannot verify that your site is authorized to send email on behalf of your domain, leading it to drop the messages entirely. To help us narrow down the cause, could you please let me know which email provider you are currently using? Often, when users rely on their default hosting server to send emails, they encounter these delivery issues frequently because shared hosting IPs can sometimes be blacklisted or lack the proper authentication setup. We strongly recommend using a dedicated, professional email delivery service (such as Amazon SES, SendGrid, Mailgun, or Postmark) instead of your local host. These services are specifically designed to handle high delivery rates and provide the robust authentication infrastructure needed to ensure your emails reach the inbox consistently. In the meantime, I recommend using a tool like Mail-Tester to send a test email. It will provide a detailed report on your DNS setup (SPF, DKIM, DMARC) and highlight exactly why your emails might be getting rejected. Once you let me know which provider you are currently using, I will be better equipped to guide you through the next steps to ensure your emails arrive reliably.

Comments

2 shown
Lyk 2026-03-04T15:41:00+00:00

It’s because the emails are indeed being sent. But most likely the receiving server drops them completely without even putting them in the spam folder. This usually happens due to misconfigured SPF/DKIM/DMARC DNS records related to the email you are trying to send from. You should look into fixing these. There are quite a few free online services that provide you with a temp email address where you can send an email and check what is problematic with your DNS setup.

Ibrahim Sharif 2026-04-13T09:19:00+00:00

Hi @anavato , If your logs indicate that the emails are being “sent,” but they aren’t appearing in the recipient’s inbox or spam folder, it is highly likely that the receiving server is rejecting them before delivery due to authentication issues. Your intuition regarding SPF, DKIM, and DMARC records is spot on. If these DNS records are missing or misconfigured, the receiving server cannot verify that your site is authorized to send email on behalf of your domain, leading it to drop the messages entirely. To help us narrow down the cause, could you please let me know which email provider you are currently using? Often, when users rely on their default hosting server to send emails, they encounter these delivery issues frequently because shared hosting IPs can sometimes be blacklisted or lack the proper authentication setup. We strongly recommend using a dedicated, professional email delivery service (such as Amazon SES, SendGrid, Mailgun, or Postmark) instead of your local host. These services are specifically designed to handle high delivery rates and provide the robust authentication infrastructure needed to ensure your emails reach the inbox consistently. In the meantime, I recommend using a tool like Mail-Tester to send a test email. It will provide a detailed report on your DNS setup (SPF, DKIM, DMARC) and highlight exactly why your emails might be getting rejected. Once you let me know which provider you are currently using, I will be better equipped to guide you through the next steps to ensure your emails arrive reliably.