Why are emails being filtered by Microsoft and ending up in junk folders?

Email marketer from Reddit explains that emails often go to spam because the sender's IP address is blacklisted, the email content resembles spam, or the domain hasn't been properly authenticated using SPF, DKIM, and DMARC records.

Email marketer from Mailjet explains that a high spam score can be caused by a high spam complaint rate, low engagement, blacklisted IP/domain and the absence of authentication protocols such as SPF, DKIM and DMARC.

Email marketer from Sendinblue responds that common reasons for emails landing in spam include: not having permission from recipients, using spam trigger words, having a poor sender reputation, and not authenticating emails.

Email marketer from Email deliverability forum explains the potential cause includes if the IP or domain reputation is low, if the email content contains spam trigger words and the absence of authentication protocols such as SPF, DKIM and DMARC.

Marketer from Email Geeks notes that they have seen a change in overall inbox placement and that the issue started around November 19/20ish.

Email marketer from Constant Contact explains the major reasons include: not getting permission to send emails, having a low sender reputation, using spam trigger words, and not authenticating your emails.

Email marketer from Hubspot explains that your email deliverability is affected by how engaged your contacts are with the email, the quality of your list, your sender reputation and your authentication standards.

Marketer from Email Geeks shares that they have seen shared IPs sending the exact same messages, with some landing in the inbox and others in junk. Also, they've observed clean clients sending to active users of no more than 6 months with their traffic being junked from dedicated IPs.

Email marketer from Neil Patel shares that emails land in the junk folder because of low engagement, spammy content, poor IP reputation, and lack of proper authentication.

Expert from Word to the Wise explains that feedback loops (FBLs) are important for understanding spam complaints. Registering for FBLs with ISPs like Microsoft allows senders to identify and remove subscribers who mark emails as spam, improving deliverability.

Expert from Spamresource explains that sender reputation plays a significant role in email filtering. Microsoft uses sender reputation to determine whether to deliver emails to the inbox or junk folder. Factors such as IP address, domain, and email content contribute to sender reputation.

Expert from Word to the Wise answers that Microsoft's SmartScreen filter blocks or redirects emails based on user complaints. If recipients mark your emails as junk, future emails are more likely to be filtered.

Documentation from Microsoft Support explains that emails end up in junk due to factors like the sender's IP address being on a blocklist, the email content triggering spam filters, or the sender not being authenticated properly (SPF, DKIM, DMARC). User settings, like marking previous emails from the sender as junk, also contribute.

Documentation from Spamhaus explains that email filtering occurs if your IP address or domain has a low reputation score. Also if your messages contain spam characteristics it will affect it's delivery.

Documentation from Google Postmaster Tools explains that deliverability issues are frequently related to low sender reputation. It recommends monitoring your reputation and adhering to email authentication best practices.