Why is email delivery to Orange and Wanadoo slow?
Summary
What email marketers say9Marketer opinions
Email marketer from Mailfence Blog explains that Orange heavily filters emails based on sender reputation and content. They recommend using a dedicated IP address and authenticating your emails with SPF, DKIM, and DMARC.
Marketer from Email Geeks shares that Orange is migrating servers, expect slower delivery to orange.fr and wanadoo.fr.
Email marketer from Mailjet mentions that to avoid delays to ISPs like Orange/Wanadoo, it's critical to warm up your IP address, especially when starting new campaigns. A gradual increase in volume helps establish a good sender reputation.
Email marketer from EmailGeek Forum shares that Orange and Wanadoo have strict anti-spam policies and often delay or block emails from senders with low reputation. It's essential to monitor your bounce rates and IP reputation.
Email marketer from Reddit explains that Orange and Wanadoo often have aggressive spam filtering and lower sending limits which can cause delays. They recommend checking your sender reputation and ensuring your emails comply with their specific guidelines.
Email marketer from Sendinblue shares that exceeding sending limits to Orange/Wanadoo can lead to delays. Monitor your sending volume and adhere to their specified limits to avoid being throttled.
Email marketer from EmailOnAcid shares that delivery delays can occur due to network congestion, DNS lookup issues, or server overload on the recipient's end (Orange/Wanadoo).
Email marketer from Stackoverflow explains that slow email delivery to specific domains like Orange/Wanadoo could result from a combination of factors: greylisting (temporary rejection), reverse DNS issues, and high spam scores.
Email marketer from Litmus suggests that deliverability issues like delays to Orange/Wanadoo may stem from poor list hygiene, spam complaints, or exceeding sending limits imposed by those ISPs.
What the experts say2Expert opinions
Expert from SpamResource explains that French ISPs, including Orange and Wanadoo, are known for their strict spam filtering and lower acceptance thresholds. They attribute this to historical issues with spam originating from or targeting France, leading to more aggressive anti-spam measures.
Expert from Word to the Wise, Laura Atkins, shares that sender reputation plays a significant role in deliverability to French ISPs like Orange.fr and Wanadoo.fr. She emphasizes the importance of monitoring feedback loops and promptly addressing any complaints to maintain a positive reputation.
What the documentation says5Technical articles
Documentation from Wanadoo's help page states that delays in receiving emails can be caused by server maintenance, high traffic, or spam filtering. They suggest checking spam folders and contacting customer support if delays persist.
Documentation from IETF (RFC 821) outlines that the Simple Mail Transfer Protocol (SMTP) allows for temporary delays in message delivery due to various reasons like server maintenance or network issues. Orange/Wanadoo may implement these delays.
Documentation from RFC 5321 explains that SMTP servers, including those used by Orange and Wanadoo, may introduce delays due to temporary failures, resource limitations, or anti-spam checks. The RFC recommends implementing retry mechanisms to handle transient errors.
Documentation from DMARC.org highlights that implementing DMARC correctly can improve email deliverability. Incorrect or absent DMARC records may cause Orange/Wanadoo to delay or reject emails.
Documentation from Orange's Postmaster Guidelines specifies that delays can occur if emails are flagged as potentially spam or if the sender's IP address is on a blacklist. They advise regularly checking their blacklist tools and following best practices for email sending.