Messaging limits when i send messages error

i have tried to send 1000 message at once from frappe using sendgrid
i have link it with frappe … i send only 100 ?? then i see this error

smtplib.SMTPDataError: (451, “You’ve exceeded your messaging limits”)

seems issue with sendgrid subscription

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yes today i know this subscription have 100 email a day …
i wonder how i can handle such exception … like if we have it … put in a queue the rest of emails and send them tomorrow … etc ?