Any multifunctions support OAuth for SMTP??

yes

[SalesServiceGuy]

Toshiba's latest firmware Version FW1820 supports OAuth.

[slimslob]

Microsoft also has a new product called High Volume Email as an additional option, though once it goes into general availability there will be a charge for it.

https://techcommunity.microsoft.com/t5/exchange-team-blog/public-preview-high-volume-email-for-microsoft-365/ba-p/4102271

I am certain that major corporations will not mind the charge.

[rthonpm]

Microsoft also has a new product called High Volume Email as an additional option, though once it goes into general availability there will be a charge for it.

https://techcommunity.microsoft.com/t5/exchange-team-blog/public-preview-high-volume-email-for-microsoft-365/ba-p/4102271

[leo34staffs]

The Sharp CR4.5 and CR5 range of machines support this form of authentication, i have set this up and works a treat. (mx2651 upto 6071 and Bp range )

[SC899]

Anyone know of any manufacturer that support the upcoming basic auth changes to Exchange online? Or is everyone just rolling with Microsoft's suggestions to either direct send or relay?

https://techcommunity.microsoft.com/t5/exchange-team-blog/exchange-online-to-retire-basic-auth-for-client-submission-smtp/ba-p/4114750