[wp-trac] [WordPress Trac] #64367: Upgrade to WordPress core 6.9 from 6.8.3 causes WooCommerce email failure?

[WordPress Trac]

#64367: Upgrade to WordPress core 6.9 from 6.8.3 causes WooCommerce email failure?
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 Reporter:  philipg100         |       Owner:  (none)
     Type:  defect (bug)       |      Status:  closed
 Priority:  normal             |   Milestone:
Component:  Mail               |     Version:  6.9
 Severity:  normal             |  Resolution:  duplicate
 Keywords:  reporter-feedback  |     Focuses:
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Comment (by siliconforks):

 Replying to [comment:6 philipg100]:
 > Okay implementing the code snippet you suggested has worked. HOWEVER
 -I'm not trying to be difficult here but I look after and manage upgrades
 for a significant number of WordPress sites. Am I really now expected to
 now implement this code snippet on EVERY site?. You say: "While it's
 possible some people have not yet noticed, the number of reports for this
 issue so far is quite low (less than half a dozen that I've seen)." That's
 the problem-people DON'T generally notice emails not working until their
 business falls through the floor and they start asking themselves: "why
 aren't I getting any more enquiries or leads? " Surely email functionality
 is CORE and crucial to the successful operation of a business website?

 To be honest, sending email from a web server, in 2025, is unlikely to be
 very reliable.  You need to have about a dozen things configured
 correctly, and even if you manage to do that, emails still sometimes end
 up in people's spam folders (or even worse - disappear entirely) for
 reasons which are not always clear.  This is a problem which is by no
 means limited to WordPress.

 Many WordPress administrators attempt to improve email deliverability by
 installing plugins which do not attempt to send email directly from the
 web server - instead they will send email via SMTP or via a third-party
 transactional email service.  If email functionality is critical for your
 website, it may be best to use one of those.

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Ticket URL: <https://core.trac.wordpress.org/ticket/64367#comment:7>
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