A high email bounce rate can stem from various factors. Understanding these reasons is the first step to addressing and reducing them. Here are the common culprits:

  • Invalid Email Address: Incorrect or outdated address.
  • Full Mailboxes: Recipient’s mailbox is at capacity.
  • Emails Flagged as Spam: Content triggers spam filters.
  • Server Issues: Recipient’s email server is down or not functioning.
  • Poor Sender Reputation: Low trust due to previous flagged emails or spammy behavior.

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