mailis not working

Hello

My mail is not working. my all setting are correct.
Enable the RSVP e-mail notifications? yes

In the SMTP setting

Notification sender name: ajay kumar (can i use any name here)

Insert the display name of the notification sender.
Notification sender address : redacted (can i use any email here)

Mail sending method: SMTP

SMTP host : cloud.adroitssd.com(provided by hosting)

Mail sending port
465

Use SMTP authentication? Yes

SMTP username
redacted

Insert the username to be used to access your SMTP server.
SMTP password
•••••••••••••

If i use this ssl://smtp.gmail.com:465 and book the ticket it take long time then do the booking. data is stored but mail is not send .

I dont understant what to do .

Please help

Thanks

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