What causes unclassified soft bounces from Orange.fr in Klaviyo, and how can they be resolved?

Email marketer from EmailGeek shares that monitoring bounce rates and analyzing bounce reasons is crucial for maintaining healthy email deliverability. High bounce rates can signal potential problems with your sending practices or list quality.

Email marketer from Email Geeks refers to Postmastery's page and explains that OFR_999 refers to the IP being suspended for a while, likely based on complaints. Recommends reaching out to Orange if this results in mail getting undelivered.

Email marketer from Stack Overflow responds that temporary rejection errors from a mail server like Orange.fr can occur due to server overload or greylisting. Retrying the email after a delay might result in successful delivery.

Email marketer from Litmus shares segmenting email lists and sending targeted campaigns improves engagement and reduces bounces. Sending relevant content reduces the chance of inactive or uninterested recipients, and therefore bounces.

Email marketer from Mailjet explains that soft bounces can occur when the recipient's mailbox is full, the server is temporarily unavailable, or the message is too large. These are often temporary issues that resolve themselves over time.

Email marketer from Email Geeks says if the word free is being blamed to DM him the ticket ID and/or the rep who ~helped~ assisted you. I will gladly throw a stink internally.

Email marketer from Email on Acid shares A/B testing is important when testing sending emails, which allows email marketers to test new content and optimize for soft bounces when they occur with email providers.

Email marketer from Reddit explains that Orange.fr is known to have strict spam filters and connection limits. Soft bounces might be related to these policies and suggests contacting Orange.fr support or adjusting sending practices.

Email marketer from GMass shares warming up your sending IPs is important especially when using shared IP addresses as is the case on Klaviyo. Over time it warms up your sending reputation which can impact soft bounce occurrences.

Email marketer from Neil Patel shares that high bounce rates, including soft bounces, can negatively impact sender reputation and deliverability. Regularly cleaning your email list to remove inactive or problematic addresses is essential.

Email marketer from Email Geeks explains that the bounce message is usually returned due to too many simultaneous SMTP connections or reputation issues with Orange. It's called transient/deferral error.

Email marketer from Email Geeks shares the Orange postmaster site details error codes, and 99X error codes refer to rate limiting due to bad behavior. Suggests checking if emails are eventually delivered or delayed.

Expert from Email Geeks shares the connection problems could be the orange.fr machine is overloaded, or the Klaviyo IP address did something very bad. The issue is not related to the recipient, content, or authentication. It’s before Klaviyo had a chance to tell them anything at all about the mail, not even who it was from.

Expert from Spam Resource explains the importance of setting up DKIM when using Klaviyo due to the shared nature of their platform. Incomplete or missing authentication could lead to deliverability issues with Orange.fr and other ISPs.

Expert from Email Geeks advises against reaching out to orange.fr directly. Recommends waiting for higher-tier support at Klaviyo to understand and resolve the issue.

Expert from Email Geeks shares that the actual rejection message will start with a three-digit number, and if the ESP is not showing that, it's not the real reason. Asks to get the real message. It’s a Klaviyo thing to resolve, especially if it’s part of a shared IP pool.

Expert from Email Geeks advises to tell Klaviyo: "It is not our template, as the failure happened at connection time." Seriously, all you need to do is say "this is an IP based block".

Expert from Email Geeks explains that a greeting failure means the MTA successfully connected to the Orange.fr MX, but something happened when trying to send the greeting to start the SMTP conversation. Suggests the issue could be too many connections per IP or something wrong with the EHLO string. This is a Klaviyo problem.

Expert from Email Geeks states this is a Klaviyo problem and they have to fix it. If Anne-Sophie is right, this is an IP-based block.

Expert from Email Geeks explains that the actual bounce message is needed to help diagnose the issue. Without it, the knowledge is limited to the 'unclassified' status. Ask for the exact bounce message from Klaviyo.

Expert from Email Geeks responds that Klaviyo suggesting the template or the word 'FREE' is the problem is a bad response, and it's likely what support is told to say.

Expert from Word to the Wise explains that bounce classifications provided by ESPs are often oversimplified and can be misleading. A deeper look at the actual SMTP error code is necessary to properly diagnose the issue with Orange.fr.

Documentation from Twilio SendGrid explains that SMTP error codes in bounce messages can provide valuable clues about the reason for delivery failures. Reviewing these codes can help identify specific issues with Orange.fr's servers.

Documentation from Orange explains that specific error codes indicate reasons such as temporary IP suspension due to complaint rates, or exceeding connection limits. Understanding these codes is important for troubleshooting.

Documentation from RFC Editor explains that the SMTP protocol includes mechanisms for reporting temporary delivery failures, which can result in soft bounces. These failures often indicate transient issues that may be resolved later.

Documentation from Klaviyo Help Center explains that a soft bounce indicates a temporary delivery issue, such as a full inbox or server problems. These emails may be delivered later if the issue is resolved.