Each user that signs up for MailerSend’s email service goes through a rigorous verification process. This is to prevent bad actors or spammers from using our services, which helps us to maintain a healthy pool of IP addresses with good sender reputations. We monitor the activity and health of our IPs daily, so any potential issues will be caught and rectified before they have a chance to affect our users or their email deliverability. We also make sure that all content sent out by our users is in accordance with our Terms of Service (ToS) and we have automatic alerts in place that notify us of suspicious sending activity. And lastly, we have 10+ years of experience as an email service provider in the email marketing and transactional email industry, so you can rest assured that your emails are in good hands!