Why are emails going to spam in Outlook.com?
Summary
What email marketers say9Marketer opinions
Email marketer from StackExchange says that content can affect if you go to spam; he says that the usage of specific words, especially 'spammy' ones, can trigger spam filters and cause deliverability issues to Outlook.com and other providers.
Email marketer from Mailtrap explains that sending emails to spam traps can damage your sender reputation and lead to emails being filtered as spam in Outlook.com. Proper list hygiene is essential.
Email marketer from Reddit explains that low engagement rates with your emails from Outlook.com users might cause your emails to be flagged as spam, even if the content is legitimate. Encourages list cleaning and segmentation.
Email marketer from Word to the Wise shares that factors like sender reputation, authentication (SPF, DKIM, DMARC), and engagement impact inbox placement at Outlook.com. Poor sending practices can lead to spam filtering.
Email marketer from Microsoft Support explains that Outlook.com spam filters might be mistakenly marking legitimate emails as spam. Suggests checking the junk email folder and adding the sender to the safe senders list.
Email marketer from EmailToolTester shares that using email testing tools (like GlockApps or Mail-Tester) can identify deliverability issues with Outlook.com and provides insights into spam filter triggers.
Email marketer from Sender explains that a mismatch between the 'From' address and the sending server can trigger spam filters in Outlook.com. Keeping these aligned improves deliverability.
Email marketer from Tech Support Forum shares that Outlook.com users can manually mark emails as 'not junk'. If enough users do this, Outlook.com may start delivering emails from that sender to the inbox.
Email marketer from Email Geeks shares that one of their clients is only having deliverability issues with Outlook.com, even with good sending practices, and suggests that Outlook.com is the most challenging Mailbox Provider (MBP). They have also submitted a report to Microsoft.
What the experts say5Expert opinions
Expert from Word to the Wise shares that list bombing will impact email deliverability to providers like Outlook.com. List bombing refers to the practice of signing someone up for numerous newsletters and other subscriptions without their consent.
Expert from Spam Resource explains that a poor sender reputation is a major factor causing emails to land in Outlook.com's spam folder. This reputation is based on sending history, complaint rates, and adherence to email best practices.
Expert from Word to the Wise shares that implementing and enforcing DMARC (Domain-based Message Authentication, Reporting & Conformance) can significantly improve email deliverability to Outlook.com by preventing domain spoofing.
Expert from Email Geeks shares an experience where Outlook placed emails in the spam folder even with a sender score of 100, suggesting deliverability issues can occur despite a good sender reputation.
Expert from Email Geeks shares their experience sending a campaign and receiving newsletters in the inbox at Outlook.com, indicating that Outlook.com is not down.
What the documentation says4Technical articles
Documentation from RFC-Editor.org details that an improperly configured SPF record, or lack thereof, can lead to emails being flagged as spam by Outlook.com. Validating the SPF record is important to ensure proper email authentication.
Documentation from DMARC.org explains that incorrect or missing DMARC records can cause emails to fail authentication checks, leading to spam placement in Outlook.com. Proper configuration is crucial for deliverability.
Documentation from Microsoft explains that Outlook.com has sending limits to prevent spam. Exceeding these limits can result in emails being flagged as spam or blocked.
Documentation from Google explains that although this is aimed at Gmail, these recommendations help. Following industry best practices, like providing easy unsubscribe options, can improve deliverability across multiple providers, including Outlook.com.