Troubleshoot a Newsletter Block

This guide explains why sending an Infomaniak Newsletter may be blocked and how to avoid it in the future.

Reasons for a Newsletter Block

• Sending a Newsletter may be blocked if:
  • too many recipient email addresses are invalid.
  • the SPAM rate is too high.
• As an email host and provider of a Newsletter service, Infomaniak must take all necessary measures to prevent any spam abuse. If its IP addresses or domains are blacklisted, this can result in the blocking of all emails sent by its other, even legitimate, clients, which would negatively affect the reputation and quality of service for all its users.

How to Avoid a Newsletter Block?

• Use only a contact list that you have built yourself.
• Build your lists through double Opt-in forms.
• Regularly clean your contact list, at least once a year, with services like neverbounce, bounceless, verifalia, or quickemailverification.
• Always keep your brand/company name clear and visible in the body of your emails!
• Never import a contact list from another Newsletter provider without cleaning it first!
• Before sending, make sure your campaign will reach only the subscriber group you want.

What to Do in Case of a Newsletter Block?

• After a block, contact Infomaniak support to be able to complete the blocked send.