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Are there any email sending limits?

Yes. Email sending limits help to protect Mailfence IP addresses reputation and ensure all messages sent from Mailfence are delivered in the recipient’s inbox, and not the spam folder.

Please note: Mailfence is not designed for bulk/spam emailing.

There are two main limits Mailfence account can reach: recipients per hour and recipients per email. Following are those limits (subject to change) depending on the type of subscription:

Free subscription:

  • Web-interface:
    • Max. recipients per hour = 25
    • Max. recipients per email = 5
    • Max. emails per day = 50
  • No SMTP service

Entry (and Trial) subscription:

  • Web-interface:
    • Max. recipients per hour = 240
    • Max. recipients per email = 120
    • Max. emails per day = 500
  • SMTP:
    • Max. recipients per hour = 240*
    • Max. recipients per email = 120*

Pro email sending limits:

  • Web-interface:
    • Max. recipients per hour = 480
    • Max. recipients per email = 240
    • Max. emails per day = 1000
  • SMTP:
    • Max. recipients per hour = 480*
    • Max. recipients per email = 240*

Ultra email sending limits:

  • Web-interface:
    • Max. recipients per hour = 480
    • Max. recipients per email = 240
    • Max. emails per day = 3000
  • SMTP:
    • Max. recipients per hour = 480*
    • Max. recipients per email = 240*

Incoming email size limit:

  • 50 MB (including attachments, if any)

Outgoing email size limit:

  • Free plan: 20 MB
  • Entry/Pro/Ultra plan: 50 MB

For sending large files as email attachments, please use Send as hyperlink option.

* Note: In addition to the above email sending limits, our anti-spam/anti-abuse system further restricts the sending of emails based on dynamic factors (e.g., sending IP’s reputation and the recipient address domain’s sensitivity) and can immediately block the sending of suspicious account activity. If you encounter such a blockage and believe it to be an error on our part, then contact our support by email.

** Email attachment size increases (depending on the file type) to represent it in a format (MIME encoding) that email system understands.

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