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- Business domains using Office 365 - hotmail.com - msn.com - outlook.com - live.com - microsoft.com
and any country/region-specific variants of these domains.
Allowlisting availability
Microsoft does not provide its own allow-list to mailers but does use the Senderscore Certification allow-list. To find out more information about the service, check directly with Validity.
Feedback loop availability
The Junk E-Mail Reporting (JMR) Partner Program is the Microsoft feedback loop. The goal of Junk E-Mail Reporting (JMR) Partner Program is to help organizations maintain mailing best practices by unsubscribing unwanted recipients and ensuring clean mailing lists. To get started, fill out the form at: https://postmaster.live.com/snds/JMRP.aspx?wa=wsignin1.0
Authentication used
Microsoft authenticates using SPF and DKIM.
Typical problems encountered
Bulking due to poor reputation factors that include complaints, unknown users and engagement.
High volumes of mail determined to be 'spammy' by Brightmail (see known filters, below) may cause a sender's IP address to be blocked as well. These blocks last for 24 to 48 hours and are then removed. If the large majority of mail originating from the IP is marked as spam by Brightmail it will be blocked again, and so on indefinitely. In this scenario, it is not Microsoft's system that is blocking the IP address but Brightmail's.
The only way to stop this process is to contact Symantec, not Microsoft, to have the block removed. To do this, send an e-mail message to: investigation@review.symantec.com
After you've sent the request, their team will open the submission and render a judgment, or possibly request additional information. Remember to include the IPs which are being blocked. Until Symantec goes through the process of investigation and renders a decision there is nothing that Microsoft can do to improve the delivery of your messages.
At this website you can receive answers to some common questions as well as access Support.
The average response time is 2-4 days.
Gmail
Domains managed
- Business domains using G Suite - gmail.com - googlemail.com
and any country/region-specific variants of these domains.
Allowlisting availability
No details provided.
Feedback loop availability
No details provided, but Gmail supports the List Unsubscribe function. Currently Gmail only supports the mailto option of List Unsubscribe. The unsubscribe option will only be available to a recipient if the sender authenticates with SPF and DKIM, uses the mailto list unsubscribe, and has a good reputation
Authentication used
Gmail verifies and publishes SPF and DKIM records. Gmail filters inbound mail based on authentication and provides the pass/fail results for these authentication checks in the headers of the raw message source. To access the message source, drill down to the Gmail seeds. Authenticated senders receive some positive weighting toward placement in the inbox.
Typical problems encountered
The most common problem at Gmail is bulking. Senders who experience bulking at Gmail should focus on list quality and content testing. Since Gmail does not provide a feedback loop, removing inactive subscribers is one of the most effective ways of reducing complaints and improving inbox placement rate.
Gmail does occasionally block mail, usually with one of the following errors:
550 5.7.1 Our system has detected an unusual rate of unsolicited mail originating from your IP address. To protect our users from spam, mail sent from your IP address has been blocked. Please visit http://www.google.com/mail/help/bulk_mail.html to review our Bulk Email Senders Guidelines.
421 4.7.0 Our system has detected an unusual rate of unsolicited mail originating from your IP address. To protect our users from spam, mail sent from your IP address has been temporarily blocked. Please visit http://www.google.com/mail/help/bulk_mail.html to review our Bulk Email Senders Guidelines.
The Postmaster will respond with an application to be completed and submitted via email.
Feedback loop availability
Yahoo! offers a domain-based Complaint Feedback Loop service, free of charge. The one requirement they have is that all email needs to be signed with DKIM. Feedback comes in the form of the Abuse Reporting Format (ARF) and will include the the entire and unredacted original message.
Yahoo! checks inbound mail for SPF and DKIM. If you have a DMARC policy in place, Yahoo! will check it and block mail accordingly.
Typical problems encountered
Yahoo! filters email based on user feedback, traffic and reputation history, authentication, content, and engagement.
Mail not meeting Yahoo! standards is generally delivered to the Junk folder. For senders with insufficient reputation or sending history, deferrals are common. Blocks can also be triggered by content.
Known filters used
Yahoo! uses a home-built suite of anti-spam filters called SpamGuard which learn "spammy" content through user complaints.
For bulking issues, senders can contact Yahoo by clicking the Contact Us link on the Yahoo Postmaster website.
Yahoo usually replies with a canned response directing senders to the postmaster website resources, as most bulking is a result of reputation.
Mail.ru
Domains managed
mail.ru and my.com (similar to Alto Mail).
Allowlisting availability
Mail.ru does not provide its own allowlist to mailers but does use the Return Path Certified allowlist. To find out more information about the service, speak to your Success Manager.
Please leave feedback below and/or hit the “like” button to show this type of content is useful. You can ask questions and provide suggestions for helpful email deliverability topics in the Q&A area Q&A – SAP Emarsys Email Deliverability.
And if you’d like to find out more SAP Emarsys, you can visit the community page: SAP Emarsys CX.
