Email providers assess sender reputation, authentication, content and recipient behaviour when deciding where to place a message.
Common Causes #
- Missing or incorrect SPF, DKIM or DMARC records.
- Compromised mailbox sending spam.
- New domain or IP reputation.
- Too many marketing messages sent without consent.
- Misleading subjects or excessive links.
- High bounce or complaint rates.
- Recipients rarely opening or replying.
What to Check #
- Change the mailbox password if compromise is suspected.
- Confirm SPF and DKIM are valid.
- Send a normal test email with simple content.
- Ask the recipient to mark the message as not spam.
- Avoid sending bulk campaigns from a normal mailbox.
Long-Term Improvement #
Use permission-based mailing lists, keep contact data clean and send marketing campaigns through a suitable email marketing platform.
Need Help? #
If you still need assistance, open a support ticket through your Vertico client account and include the affected domain or email address, a screenshot of the error, and the approximate time the problem occurred. Never send passwords by email or support ticket.
