With our investigation, it seems that email accounts that are newer in age or have no recent sending activity were affected by new rules by Google that limited these accounts from sending emails from Interseller. We recommend enabling two-factor authentication and adding a signature with your email and phone number before starting an email sequence. If you continue having issues, please get in touch with us.
Posted Mar 14, 2019 - 21:25 EDT
We're still looking into the issue. We've isolated the problem to newer Gmail accounts that do not have email sending history. We'll update this page when we have more information.
Posted Mar 14, 2019 - 17:28 EDT
We've currently looking into issues with Gmail blocking some messages for newer Interseller accounts.