Increate your sending reputation by removing spam traps, bounce, and deactivated emails.
Over time, in any database appear redundant contacts: abandoned emails, spam traps, and emails with errors.
Such emails are nothing but trouble:
Reduced deliverability. Mailings to invalid addresses are more likely to end up in spam.
It is more expensive to charge for the email service. If you remove bad emails you can go to a cheaper rate.
Lower mailing results. Invalid contacts don't open messages and don't click on links.
Clean up your database of invalid emails with the email validator. Mailing rates will go up and costs will go down.