Getting started with ImprovMX

• Updating your ImprovMX domain’s login email

  To update your account email address, simply follow this alternative TXT login technique. Learn more

• How to use webhooks to receive emails in your apps

  With ImprovMX, you can configure your incoming emails to be sent as structured JSON to your web application. Learn more

• Why does ImprovMX need SPF?

  Learn more

• Why ImprovMX doesn’t use MXS domains anymore?

  Learn more

• Regex email forwarding

  Learn more

• Testing your forwarding from the same Gmail account

  Your redirection doesn't seem to work when you try from sending a test from your email address? It's possible that this is a related issue. Learn more

• Error codes returned by ImprovMX’s SMTP server

  A list of error codes returned by our server when you try to send an email. Bounce, anti-spam, loop detection error codes. Learn more

• What does “Invalid DKIM signature” mean?

  You may have received feedback from someone trying to send you an email which was refused with a message related to DKIM signature. Learn more

• Some emails are refused because of Spamhaus, why?

  You might have received a notification from a sender saying that their email was refused because their domain or IP addresses are listed on Spamhaus. Learn more

• What are the allowed attachments?

  We forward emails with attachments for up to 10Mb per email and up to 25Mb for our premium members. Some file types are forbidden. Learn more

• What do we log?

  Insights into our data logging practices, and how we ensure that your email content is kept safe from data manipulations. Learn more

Check our step-by-step setup guides