I was one of the early adopters of the free G Suite (formerly Google Apps) package from Google. So I set up a little custom domain and email for my family. It's limited to 50 users but that's way more than I need or use.

Just in the past few weeks, many of the emails I send out by myself (eg, not replies) get sent to my recipient's spam folders. Ironically, even a family member who is on the same custom domain name that I'm on! All the people where this has happened have happened to be on Gmail but those are just the people I'm aware of.

I have no problem receiving other people's emails.

I am not a marketer and I only use the email for personal purposes -- nothing automated has access to my account. I have never had this problem until just recently.

What can I do?

Update: as per the first response below, I had not ever set up SPF, DKIM, and DMARC. I have now done so. After a few days, the problem stopped.

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    I’m voting to close this question because usually questons about DNS are not questions for end-users of web applications, so they are off-topic for this site. Commented Jun 10, 2020 at 19:07

1 Answer 1


Seeing that you are managing your own G Suite domain instead of using Gmail. You will need to ensure that you have SPF, DKIM and potentially DMARC configured against your domain to ensure delivery is optimal.

Authorise email senders with SPF

Authenticate email with DKIM

Add a DMARC record

Additionally, you have the ability to configure how email coming into your organisation is handled by going to Apps > G Suite > Gmail > Safety and configuring reviewing your enhanced email protection settings.

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