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Sending email using the GMail SMTP server sometimes fails with the error:

421 4.7.0 Try again later, closing connection.
Why is that?

asked Dec 04 '12 at 15:57

chilkat's gravatar image

chilkat ♦♦

GMail is probably limiting the amount of email that can be sent in some period of time. It's probably to prevent spamming. If sending a large amount of email, it's probably best to use your own email server.


answered Dec 04 '12 at 15:59

chilkat's gravatar image

chilkat ♦♦

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Asked: Dec 04 '12 at 15:57

Seen: 5,776 times

Last updated: Dec 04 '12 at 15:59

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