> For the complete documentation index, see [llms.txt](https://docs.projectsend.org/about/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.projectsend.org/about/how-to-use/e-mail-notifications/smtp-settings.md).

# SMTP settings

It's recommended that you set up the sender either with an SMTP account, or via gmail to improve the chances of reaching inbox instead of being marked as spam.

After you set up your account information, try [testing it with the available tool](/about/how-to-use/e-mail-notifications/testing-email-settings.md).

Some of the most common errors include using the wrong settings, not enabling the required SSL options or even having the port blocked by your server's firewall (usually on CentOS).