Question

Sending bulk mail with postfix and Gmail relay

I have an Ubuntu Open Lite Speed server and I’m using Postfix with Gmail relay to send emails from my Wordpress. I moved my 7k users from Mailchimp to the WP user database, and now I want to start sending newsletter from my WP installation through a newsletter plugin that I installed.

Does anyone knows if I could get banned by Gmail if I start sending newsletter to my 7k users? I followed all the steps to properly configure the FDQN hostname.

Do I have to make any further configuration to make it work without getting blacklisted?

Thanks.

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alexdo • June 17, 2020

Hello, @webmastermrpe

The most important thing to follow is to make sure that all of the email accounts in your mailing list are OPTED-IN, because you don’t want to have your emails marked as SPAM. Also as mentioned it’s always better to send the newsletters emails at small chunks in order to prevent any issues with blocking your account.

Regards, Alex

webmastermrpe • June 17, 2020

Actually I´m not using the Gmail SMTP server, I´m using Gmail relay through Postfix.

I believe that the 500 emails daily is the same for free and paid G-Suite accounts.

Thanks anyway.

Denislav Gavrilov • June 17, 2020

Hey @webmastermrpe ,

From the information I could extract, you are able to send 500 emails in a 24-hour period with the standard Gmail application. I assume your account will be blocked for a while if you try and send more. Source.

However, this is why Google created a solution named G-Suite where, I believe, you can send up to 10,000 mails a day.

I would recommend for you to go and research a bit more about the Google’s sending limit and don’t rush into actions before you are certain. :)

Best,