[wp-trac] [WordPress Trac] #64368: `Could not instantiate mail function` errors sending mail in 6.9

[WordPress Trac]

#64368: `Could not instantiate mail function` errors sending mail in 6.9
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 Reporter:  desrosj       |       Owner:  SirLouen
     Type:  defect (bug)  |      Status:  accepted
 Priority:  normal        |   Milestone:  6.9.1
Component:  Mail          |     Version:  6.9
 Severity:  normal        |  Resolution:
 Keywords:  close         |     Focuses:
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Comment (by desrosj):

 Just linking off to the related discussions upstream:
 - [https://github.com/PHPMailer/PHPMailer/discussions/3281 PHPMailer issue
 3281]
 - [https://github.com/PHPMailer/PHPMailer/issues/3282 PHPMailer issue
 3282]
 - [https://github.com/PHPMailer/PHPMailer/pull/3283 PHPMailer PR 3283]

 Let me know if I've missed any external activity or context @SirLouen.
 Please just include links to these next time for easy following.

 And thanks everyone for the great work looking into this one!

 > I'm adding `close` as a candidate of reported-upstream once this has
 been sorted out.

 Fine to leave this keyword for now. This admittedly falls into a grey
 area. It is a legitimate bug within WordPress, but it seems likely that it
 will not require any changes to WordPress itself. But the ticket is
 valuable for planning and tracking purposes.

 Sometimes tickets like this are marked resolved as `fixed` with the same
 commit that ends up attached to the library's update ticket. It can be
 helpful to have a ticket that specifically describes the bug that was
 fixed that is separate from the more general one. Let's continue to keep
 this open for now to ensure it's not missed by the contributors that
 eventually wrangle 6.9.1.

 May be a good scenario to document in the handbook. I've added that to my
 list to think this through a bit.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/64368#comment:18>
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