RSS Feed/News Every 10 minutes server error on mail send via cron: "Unable to write bytes on the wire"

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ENXF NET

ENXF NET

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Reputation:

Since the upgrade from 2.3.7 to 2.3.10 we get this error roughly every 10 minutes (i.e. minute 0, 10, 20, 30, 40, 50) once:

Code:

Code: 
Symfony\Component\Mailer\Exception\TransportException: Email to ****gmail.com from ***@forum.tld failed: Unable to write bytes on the wire. src/vendor/symfony/mailer/Transport/Smtp/Stream/AbstractStream.php:47
Generated by: Unknown account 12.3.2026 at 16:50
Stack trace
#0 src/vendor/symfony/mailer/Transport/Smtp/SmtpTransport.php(180)...

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