How to override this limit problem?

You pay your host to increase the limit

Obviously my client will have more than 60 mails to send and I could not make him wait and click every 5 minutes.

You don't make the human client wait, instead, you schedule a program (cron) to send 60 mails every 5 minutes, until all the emails are sent.

In reply to Re: Server send mail limits by Anonymous Monk
in thread Server send mail limits by bestsiteeditor

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