Gmail shows "via sendgrid.net" (or another service) next to your name
What's happening: Gmail adds "via something.com" when the message was signed by, or sent from, a domain that isn't your From domain. It's a visible sign that DKIM isn't aligned with your domain, and the same mail is more likely to fail DMARC and land in spam.
How to fix it
- Identify the domain in the "via" label: that's the tool sending on your behalf.
- Set up custom DKIM (domain authentication) for your domain inside that tool.
- Send a test to Gmail: once DKIM signs with your domain, the "via" label disappears.
Not sure which record is wrong? Check your domain free: it shows which of SPF, DKIM and DMARC is failing, in 5 seconds, no signup.