Email is not a guaranteed delivery system. Even if you have the best sending reputation in the world, the receiving email server could bounce and email for so many reasons that are outside of your control. So nothing much you could do about it. But there are other alternative solutions that aim to minimize the damage.
Klaviyo is a cloud-based e-commerce automation platform focused on sending targeted email campaigns based on metrics such as purchasing and viewing history and how customers have interacted with past emails.
One way Klaviyo can help us is its ability to automatically identify hard-bounced emails. Maybe you can integrate Klaviyo with an SMS service using Zapier so that when an order confirmation email gets bounced, you can send an SMS to your customer reassuring them that you’ve got their order and they don’t need to be concerned about not receiving a confirmation email.
Another thing you can do is enabling double opt-ins (if not already enabled). Double opt-in is a process through which a new subscriber must confirm their subscription before being subscribed to a given list, via email or SMS. This process ensures that the customers are using valid or accurate email addresses and phone numbers as well as assist in minimizing abuse and preventing the accumulation of invalid or mistyped emails and phone numbers.
According to this community post, Klaviyo does not have an in-house-built direct integration with any apps or tools that can assist in validating one’s email address. This, however, does not mean other third-party validator apps/tools have not built their own custom integration with Klaviyo. ZeroBounce and ClearOut are two such potential candidates.
ZeroBounce / Clearout
ZeroBounce and ClearOut are two well-known online email validation & verification services which help reduce bounces by allowing you to validate the email addresses before sending. With email verification, you’ll know in advance which addresses are undeliverable, and remove those from your mailing list before you send out your next email.
Sender Policy Framework (SPF) and Domain Keys Identified Mail (DKIM) are two methods that indicate the authenticity or validity of the incoming mail to the recipient’s server. If the incoming email comes up short of the validation test, it will doubtlessly arrive in the Spam Folder. Therefore, to prevent such events from happening to your own emails, it’s ideal to get your emails authenticated. Set up together, SPF and DKIM not just bring a solid verification process, they additionally make your email marketing effort increasingly proficient and genuine.