Yes, they can. Using aliases incorrectly can affect your email deliverability. Here are some best practices to ensure high deliverability:
Consistent Use: Always use the same alias for specific types of communication to build a good sender reputation. li> SPF, DKIM, and DMARC: Ensure that your domain’s SPF, DKIM, and DMARC records are correctly set up to improve deliverability. Clean Lists: Regularly clean your email lists to avoid sending emails to invalid addresses, which could harm your sender reputation.