Unable to send Email_Using_Gmail

[kavin_27]

I have configured email setting with smtp.gmail.com:25 (Checked with 465 & 587) , enabled ssl and got email alerts for past few days.I didn't get any email from yesterday and I have checked the splunkd.log it shows the below error.Let me know how to resolve this issue.
ERROR:root:(454, '4.7.0 Too many login attempts, please try again later. t15-v6sm241001qke.74 - gsmtp') while sending mail to: [email protected]

[deepashri_123]

Hey@kavin_27,

This doesn't seem to be a splunk problem.
Could you try using the steps in the below link:
https://serverfault.com/questions/543007/google-smtp-error-454-4-7-0-too-many-login-attempts-please-...

Let me know if this helps!!