Why am I seeing high bounce rates and 'too old' bounce responses, and how is my domain reputation affected?
Summary
What email marketers say9Marketer opinions
Email marketer from Email Marketing Forum suggests that high bounce rates could be due to spam traps on the email list. These spam traps identify and penalize senders with poor list hygiene, impacting deliverability and sender reputation.
Email marketer from Email on Acid shares that an outdated or poorly maintained email list can significantly increase bounce rates. They advise regularly cleaning the list to remove invalid or inactive email addresses and employing opt-in strategies to ensure the list remains current and engaged.
Email marketer from ActiveCampaign shares that avoiding spam trigger words, using a dedicated IP address, and warming up new IP addresses gradually are key strategies for improving sender reputation and preventing emails from being classified as spam. Consistent sending volume helps establish a trusted sender profile with ISPs.
Email marketer from Validity explains that domain reputation is an assessment of your sending domain’s credibility, based on factors like email authentication, complaint rates, and list hygiene. Poor domain reputation can lead to emails being filtered as spam or blocked entirely, impacting deliverability.
Email marketer from SendGrid shares that sender reputation is a score assigned by ISPs based on sending behavior, which impacts deliverability. Factors affecting sender reputation include bounce rates, spam complaints, and engagement. Maintaining a positive sender reputation ensures emails reach the intended recipients.
Email marketer from Litmus shares that proper email authentication (SPF, DKIM, DMARC) helps establish the legitimacy of emails, improving sender reputation. Implementing authentication protocols reduces the likelihood of emails being marked as spam or blocked by ISPs.
Email marketer from HubSpot shares that implementing bounce management processes is essential for preserving sender reputation. Automatically removing hard bounces from the mailing list, monitoring soft bounces, and engaging with active subscribers help improve deliverability and prevent emails from being marked as spam.
Email marketer from Mailjet shares that hard bounces indicate permanent delivery failures due to invalid email addresses, while soft bounces are temporary issues like full inboxes or server problems. High hard bounce rates significantly harm sender reputation, whereas soft bounces should be monitored, as repeated soft bounces can also lead to deliverability issues.
Email marketer from Reddit user shares that a high bounce rate often indicates a problem with the email list. It might mean that a large portion of email addresses are invalid. This user advises cleaning the email list regularly and using a double opt-in process to ensure the validity of email addresses.
What the experts say4Expert opinions
Expert from Email Geeks explains that 'too old' means that Yahoo is temp failing long enough for the mail to expire out of the queue. Mailing pointing to the sister domain could have damaged the domain reputation badly enough that Yahoo doesn’t want to accept mail as fast as it is being sent.
Expert from Spam Resource (Steve Linford) explains that poor bounce processing and list hygiene are major contributors to deliverability problems. Failing to promptly remove bounced addresses and sending to invalid recipients will damage sender reputation and lead to more bounces and filtering.
Expert from Email Geeks explains that the reputation of the sisterdomain might be bad enough at Yahoo that it is hurting the delivery of all mail. Yahoo sees the entire message before they make an accept/reject decision.
Expert from Word to the Wise (Laura Atkins) responds that focusing on positive engagement metrics and proper email authentication are critical for building and maintaining a good domain reputation. Consistently high bounce rates indicate problems that directly impact reputation and deliverability.
What the documentation says5Technical articles
Documentation from Google Postmaster Tools explains that high bounce rates can negatively impact sender reputation. It suggests monitoring bounce rates in Postmaster Tools and aiming for rates below 2% to maintain a good sender reputation with Gmail.
Documentation from RFC explains that SMTP error codes provide detailed information about why an email failed to deliver. Specifically, codes like 5xx indicate permanent failures, while 4xx indicate temporary failures. Analyzing these codes helps diagnose and resolve deliverability issues.
Documentation from SparkPost explains that bounce codes provide specific reasons for delivery failures. Analyzing these codes helps identify issues such as invalid addresses, blocked senders, or temporary server problems. Understanding bounce codes is crucial for improving email deliverability and sender reputation.
Documentation from Amazon Web Services explains that handling bounces effectively is crucial for maintaining a good sender reputation. It advises configuring bounce notifications, processing bounce feedback loops, and implementing suppression lists to avoid sending to invalid email addresses.
Documentation from Microsoft explains that exceeding sending limits can result in emails being deferred or bounced, leading to deliverability issues. Monitoring sending limits and adhering to recommended best practices helps maintain a healthy sender reputation.