Delivery Status Notification (Failure)

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We have a domain that is "Managed by Shopify", We've set it up on Shopify that whenever someone sends an email to it will be forwarded to


It's been working fine for the longest time, however, I believe, due to the recent email from Shopify regarding DMARCs, our customers started to receive undeliverable messages whenever they responded to our messages.


Subject: Delivery Status Notification (Failure)



Message may contain a virus

Your message wasn't delivered to because it may contain a virus. Learn how to check for and prevent viruses.


The response from the remote server was:
550 5.7.1 Message contains spam or virus. (110) [1706229214-624269]


I'm looking for any advice as to how to fix this.




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