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hi, I need to send specific mails after a period of 7 days, 15 days, 30 days...... i.e Weekly, Monthly, Once in 15 days, and so on, as desired by the user. Here the difference between the last sent mails should be calculated automatically, and should trigger the mail function for next lot of mails to be sent.
Is there any class or function for this.
Thank you in advance.
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