Max number of Emails allowed to Sent from Gmail SMTP per day

Gmail's SMTP is convenient. You "sender" needs not to be always your Gmail address (but the emails will include your Gmail address in the header "send by"). I am wondering how many emails at maximum can I send each day through Gmail's SMTP.

asked Mar 31, 2015 by Eric Z Ma (44,280 points)

Here there a nice recent list of the sending limits of the major email providers

commented Jun 24, 2015 by max giaco (100 points)

1 Answer

Best answer

There are many "buzz" on the Web. However, the only official information that I can found is . (If you are using Google Apps, the limitation is different)

Several important statements:

Google will temporarily disable your account if you send messages to
more than 500 recipients or if you send a large number of undeliverable messages. ... you may only send a message to 100
at a time. ... Your account should be re-enabled within 24 hours.

20 emails per hour seems safe. And make sure not sending too many undeliverable emails. The limitation is not based on days but "24 hours".

If you are wondering other email providers/hosting services' limitations, this list may b ehelpful:

answered Mar 31, 2015 by Eric Z Ma (44,280 points)

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