Why are my newsletters marked as spam internally?
If newsletters sent via MAILINGWORK are marked as spam internally or cannot be delivered, this is often due to the settings of the internal spam filter. To ensure that your newsletters are properly delivered and do not end up in the spam folder, the sending IP ranges of MAILINGWORK should be whitelisted in the spam filter by your IT department.
Why is this important?
Spam filters are designed to filter out unwanted emails and only forward legitimate messages to the recipients' inboxes. However, desired emails, such as your newsletters or test sends, may sometimes be mistakenly classified as spam. This can happen if the IP addresses of the service provider (MAILINGWORK) are not whitelisted in the spam filter.
How can this issue be resolved?
Please contact your internal IT department and request that the following MAILINGWORK IP addresses be added to the spam filter's whitelist:
By adding these IP addresses to the whitelist, you ensure that your newsletters are no longer incorrectly marked as spam and reliably land in your recipients' inboxes.
Summary
To prevent your newsletters from being marked as spam internally, the MAILINGWORK sending IPs should be whitelisted in the company’s internal spam filter. Contact your IT department and provide them with the IP addresses mentioned above. This will improve the deliverability of your emails and ensure that your messages reach the recipients as intended.