59439 – Exchange: Securing SMTP Authenticated endpoints – Disable by default for organizations without usage

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check before: 2021-09-30

Product:

Exchange

Platform:

World tenant, Online

Status:

In development

Change type:

Links:

Details:

We're working hard to make our service secure by default. The SMTP AUTH protocol use for client submissions is a common vector for attacks to use compromised credentials to send spam and phishing emails. We plan to disable the protocol for all organizations that we identify as not using the protocol. While off by default, it will still be possible for admins to enable SMTP AUTH for mailboxes that need to send emails from devices or software that require it. You can find out more about the settings involved by visiting the more info link.

Change Category:
XXXXXXX ...

Scope:
XXXXXXX ...

Ring:
General Availability

Created:
2019-12-07

updated:
2021-04-29

task type:

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