Resources > Email Deliverability

What affects email deliverability

  • By SendBridge Team

  • Last update: Jan 11, 2024

Email deliverability is the ability of an email to reach the recipient's inbox and not be filtered into the spam folder.

The following factors can affect email deliverability:

  • Email content: The content of an email, including the subject line, sender name, and body text, can impact deliverability. Spam filters look for keywords and phrases commonly associated with spam emails and may flag an email as spam if it contains these elements.

  • Email list quality: Email addresses that are outdated or invalid can negatively impact deliverability. Sending emails to addresses that are no longer in use or to addresses that are marked as spam can result in high bounce rates and complaints, both of which can harm deliverability.

  • Sender reputation: An email sender's reputation is based on past email sending behavior and can impact deliverability. A sender with a high reputation is more likely to have emails delivered to the inbox, while a sender with a low reputation may have emails filtered into the spam folder.

  • Email authentication: Email authentication helps ensure that an email is coming from a legitimate source. Emails that fail authentication may be flagged as spam or blocked altogether.

  • Email volume: Sending a large volume of emails in a short period of time can be seen as suspicious behavior and may trigger spam filters.

  • Email frequency: Sending too many emails to a recipient in a short period of time can be seen as intrusive and may trigger spam filters.

  • Email hosting: The email hosting provider and server used to send emails can impact deliverability. Some hosting providers have a reputation for hosting spam and may have emails sent from their servers blocked or flagged as spam.

In conclusion, email deliverability is a complex issue that is impacted by various factors. By ensuring that emails are well-crafted, sent to a high-quality email list, and sent from a reputable source with proper authentication, businesses can increase the chances of their emails being delivered to the inbox.

Checkout our email deliverability tips.