[wp-trac] [WordPress Trac] #39714: Proposal: Use Full PHPMailer library
WordPress Trac
noreply at wordpress.org
Mon Aug 11 16:16:34 UTC 2025
#39714: Proposal: Use Full PHPMailer library
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Reporter: Ipstenu | Owner: SergeyBiryukov
Type: enhancement | Status: closed
Priority: normal | Milestone: 6.9
Component: External Libraries | Version:
Severity: normal | Resolution: fixed
Keywords: has-patch dev-feedback | Focuses:
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Changes (by SergeyBiryukov):
* status: accepted => closed
* resolution: => fixed
Comment:
In [changeset:"60623" 60623]:
{{{
#!CommitTicketReference repository="" revision="60623"
External Libraries: Upgrade PHPMailer to version 6.10.0.
This is a feature and maintenance release introducing full support for
[https://www.rfc-editor.org/rfc/rfc6531 RFC 6531 SMTPUTF8], meaning that
plugin or theme developers are now free to use Unicode characters in email
addresses, such as `JøeÜser at example.com`, without any complicated encoding
schemes. Using this feature requires sending through a mail server that
advertises support for SMTPUTF8. For full details see
[https://github.com/PHPMailer/PHPMailer/blob/master/SMTPUTF8.md
SMTPUTF8.md].
This commit also includes the parts of PHPMailer not previously bundled
with core, specifically the DSNConfigurator, OAuth, and POP3 classes, so
that plugin developers could use those extended features without including
their own versions of the library.
Including the full library aims to make it easier (and faster) for core to
update in case of security issues, and to provide more flexibility and
security for plugins and (by extension) users of WordPress.
References:
* [https://github.com/PHPMailer/PHPMailer/releases/tag/v6.10.0 PHPMailer
6.10.0 release notes]
* [https://github.com/PHPMailer/PHPMailer/compare/v6.9.3...v6.10.0 Full
list of changes in PHPMailer 6.10.0]
Follow-up to [54937], [55557], [56484], [57137], [59246], [59481].
Props agulbra, Ipstenu, JeffMatson, lukecavanagh, dd32, Otto42,
JeffMatson, MattyRob, desrosj, SirLouen, SergeyBiryukov.
Fixes #39714, #63811.
}}}
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Ticket URL: <https://core.trac.wordpress.org/ticket/39714#comment:16>
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