How to reduce bounces

High bounce rates lead to problems like getting flagged by spam filters, or worse, getting your email account shut down.   

Ideally, bounce rate should be kept below 5% (for the entire account) to prevent trashing the accounts sender reputation. Once sender reputation is trashed, the domain and all the email accounts under that domain will get deliverability issues and will get flagged as spam. 
Here are the best ways to minimize bounces and keep your email reputation in good standing:
1. Make sure your email account is set up properly and has DKIM and SPF records in place. 
Having SPF and DKIM records is needed to authenticate the emails - emails may get suspected of phishing attack and bounce if these records are not set up:
SPF with G Suite and  DKIM with G Suite
2. Check how the list is generated and avoid purchasing lists. Make sure that you are getting up-to-date email addresses and from trustworthy sources. Purchased lists are not recommended as those lists are likely to be ridden with old inactive email addresses (which is the common cause of bounces) 
3. Use email verification tools (like BriteVerify) to weed out the email addresses that are most likely to bounce. Email verification tools check the validity of emails so users can avoid email addresses that are identified as invalid, bad or risky. 
Quickmail has a built-in email verification tool (powered by BriteVerify) that you can use easily to automatically verify your prospect list ->  Email Verification
4. Keep the email volume at a reasonable volume especially if the email account is fairly new.