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How to resolve email sending problems?

Last update: Jul 08, 2025 1 min read

The most common problem when sending emails is incorrect mail client configuration. To confirm if the problem is with your email client’s settings try to send your message via Webmail. Webmail clients are preconfigured to connect to the SMTP service on your host server. Success in sending the email via Webmail will show that the problem is indeed with the configuration of your email client.


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The correct mail settings to use and resolve this are available in Site Tools > Email > Accounts, choose the email account and go to the kebab menu > Mail Configuration.

There are also situations when your email will be sent but will end up rejected by the recipient mail host. In these situations, the message should be returned back to your mailbox with information about why it was rejected. Common reasons for rejection are:

  • The email might be considered SPAM, based on filters applied by the recipient mail host.
  • Additional authentication is required by the recipient mail host. Many email service providers require valid SPF or DKIM records to be set up before they start accepting mail from your domain. More information on how to set up SPF and DKIM can be found here.
  • A block is imposed by the recipient email host. This might be a block based on your domain or the IP of your mail server. If your server’s IP is blocked, SiteGround can assist in having the block removed.
  • Misspelled recipient address.

Want to learn more about email and SMTP troubleshooting? Download our comprehensive ebook – it is all that you need to solve similar errors with ease!

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