There’s some inconsistency in what you’re saying here:
Gmail isn’t G-Suite. Paid G-Suite accounts have the following limits:
| Limit type | Limit |
|---|---|
| Messages per day | |
| Daily sending limit* | 2,000 (500 for trial accounts) |
Free Gmail accounts always have the 500 email limit.
That’s the Google TOS, it has nothing to do with the above. There’s definitely a difference between ‘it worked until now’ and being allowed to do so. We’ve seen users attempt this over the past seven years and it has never worked out:
Some more reading on the topic
New setup - errors when trying to send emails through gmail - #2 by pfaffman
Office 365 SMTP settings - #2 by codinghorror
https://meta.discourse.org/t/setup-smtp-in-discourse/79173/2
Anyone using gmail for SMTP? - #8 by sam
Gmail SMTP Relay Setup not working - #2 by justin
Can I use gmail smtp? - #2 by fefrei
POP3 polling error - #4 by pfaffman
Sidekiq queue too large - Google email provider problems - #2 by codinghorror
There’s an email setup guide with a list of recommended providers. You don’t have to follow it, but we can’t help you use Gmail or GSuite in ways that weren’t intended.