Why am I suddenly seeing a flood of emails from cloudflare-email.net?

Email marketer from Mailjet Support states that the increase in email volume from Cloudflare could negatively affect Mailjet's IP reputation if a significant portion is flagged as spam. The advice is to monitor the emails and report any suspicious activity.

Email marketer from EmailOnAcid shares that the sudden increase might be due to spammers exploiting Cloudflare's services. The domain cloudflare-email.net is new, and spammers often take advantage of such new services before they are properly regulated or monitored, resulting in a temporary flood of spam.

Email marketer from MXToolbox explains that cloudflare-email.net being a relatively new domain raises concerns, as spammers often use new domains to avoid reputation filters, suggesting the flood could be related to such tactics.

Email marketer from Talos Intelligence shares that new sending domains are frequently abused to send spam or phishing. This is due to the fact that they often have no sender reputation, meaning they can bypass reputation filters until they are flagged.

Email marketer from StackOverflow explains that Cloudflare's email routing is used for forwarding emails to a different address, and because of this, the originating IP address may appear as cloudflare-email.net, making it hard to trace the original sender.

Email marketer from Reddit user u/RedShift13 suggests that the increased email volume from cloudflare-email.net may be due to Cloudflare's new email routing service gaining popularity and use, leading to both legitimate and potentially spammy emails originating from their servers, which will impact reputation over time.

Email marketer from SendGrid explains that the increase in volume could be from Cloudflare's new email routing gaining traction, but warns that any service facilitating email needs to have robust abuse prevention measures to avoid becoming a source of spam.

Email marketer from LinkedIn explains that if cloudflare-email.net is being used for forwarding, issues can arise because the original sender's SPF record might not align, leading to deliverability problems and emails potentially being marked as spam.

Expert from Email Geeks explains that Cloudflare anonymizes reports, stripping sender information, which hinders abuse reporting and appears to maintain their policy of protecting online abusers.

Expert from Spam Resource details a history of issues with Cloudflare, noting that their architecture often makes it difficult to identify and block spammers, leading to increased volumes of spam reaching inboxes. This is due to the service anonymizing the true source by design.

Expert from Email Geeks shares that they also received mail from cloudflare-email.net a few days ago and assumed Cloudflare had deployed more mail forwarding.

Expert from Word to the Wise highlights that Cloudflare Email Routing's design makes it difficult to report spam, as abuse reports are often not directly forwarded to the original senders, potentially contributing to the influx of unwanted emails.

Expert from Email Geeks clarifies that Cloudflare does forward reports to customers on an opt-in basis with a pre-checked, disabled checkbox.

Expert from Email Geeks points out that Cloudflare's abuse reporting process requires posting to a public forum or joining a Discord server.

Expert from Email Geeks mentions receiving spam from cloudflare-email.net last week.

Expert from Email Geeks says they had checked the reporting form a week prior and didn't notice changes.

Expert from Email Geeks shares that the spam they received only contained CF information and was hosted on CF's P-2-P network.

Documentation from IETF specifications highlights that using forwarding services can sometimes cause authentication issues (SPF, DKIM) if not configured correctly, which could lead to emails being marked as spam.

Documentation from Cloudflare Email Routing Documentation indicates that Cloudflare provides email routing, meaning the service might be used to forward emails, and users should refer to the headers of the email to determine the route and final destination.

Documentation from RFC specifications details that abuse reporting should be done through the abuse@ address associated with the sending domain.

Documentation from DKIM specification shows the requirements of proper DKIM setup when forwarding email - and if DKIM is not setup correctly then SPF failures can happen.

Documentation from Cloudflare support states that the user should consult the headers of the email and check SPF/DKIM records of the sender, and fill out a report to be forwarded to the relevant team for review.