Email notifications now attempt to spoof user's contact email address - blocked by Office 365

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We are seeing new email notifications for security notices on login from RingCentral being sent "from" the user's email address on behalf of / via Ringcentral.  In other words, if my user's email account is UserEmail@notifyemail.com - then RingCentral sends login security notices with a from address of  "Ringcentral via UserEmail@notifyemail.com" with a reply-to address of service@ringcentral.com.  Because RingCentral is using the actual email address of the person to send email notifications, if the person is using Office 365 with an spf record, the email notification is dropped by Microsoft as being a threat / spammer.  You should not be spoofing email addresses of your users as the from address.  If you do this, we would need to add your mail servers' to the user's mail server spf record.  Please advise.  We are also escalating this with tier 2 RingCentral support.
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Brad Otto

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Posted 2 months ago

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Jeff Salisbury, Champion

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There are customers like us who already have an SPF record completely full with the already approved authorized senders. We literally don't have room because of the record size limitation where we have already used all of the space. We would appreciate RingCentral not sending from addresses on our email domains, and instead using some generic account like "notifications@ringcentral.com".

(Edited)
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Saadet - Community Moderator, Official Rep

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Hey Brad, what's the case number?
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Brad Otto

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092328107
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Saadet - Community Moderator, Official Rep

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Hey Brad, that's not pulling anything up :/ Can you double check the numbers? Maybe one got transposed or something
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Brad Otto

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Sorry, 09328107
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Brad Otto

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Tier 3 support resolved this issue for us.