How 2 Guru

Recently I was play around with Gmail to download email(s) to SugarCRM.
While doing the testing, found that one of the email accounts always fail to connect to Gmail but others without any problem.

So, I decided to debug into the issue and found the error message “Too many login failures” return from Gmail.
Suspect it is due to too many test connections on the email account(can’t recall the email account password) and causing Gmail block the server IP + email account.

Try to google solution for this scenario, but found nothing useful.
Finally I found the solution by read more »

Recently working on the SugarCRM open source software. Due to some user requirement, I need to setup an inbound email (an email feature inside the SugarCRM) connect to gmail for downloading email using pop3.

After try few times, I found that the test setting is connecting successfully. But when the scheduler job try to establish the connection to gmail, it always fail. Finally, I found the problem is due to the invalid ssl cert and causing the connection failure. Below is the error that imap_open return to me

ERROR Certificate failure for pop.gmail.com: unable to get local issuer certificate: /C=US/O=Google Inc/CN=Google Internet Authority

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