Symfony version(s) affected

6.2.5

Description

When using mailer in job queue (laravels job queue via supervisor) with connection to SMTP service of smtp.office365.com after 10 minutes the service timeouts. The mailer should ping the service and restart the connection if needed but fails to read the entire response from the server.
The NOOP command returns multiple rows of response but mailer reads only the first one from the stream:

Since the first one is 250 OK it goes on but immediately crashes on the next command.

How to reproduce

1. setup connection to smtp.office365.com
2. setup mailsending via jobqueue
3. send email
4. wait 10+ minutes and send another mail

Possible Solution

No response

Additional Context

No response