Account Features and Settings ★ API Docs ★ Subaccounts Sending email on behalf of your customers SMS Messaging API Templates IP Pooling Disabling an SMTP Username, IP Address, or API Key See all 23 articles
Email Delivery ★ API Docs ★ Verified Senders Verified Senders: Sender Domain vs Single Sender Emails 550 “Administrative Prohibition” or "Relay Access Denied" "Domain of sender address does not exist" error Barracuda Delivery Solution 550 that SMTP username's account is not allowed to send See all 20 articles
Technical Details ★ API Docs ★ Detailed Setup Guides Location Specific Services Common Fixes for Scan to Email VERP - Variable Envelope Return Path How to Find Full Email Headers Sub-Processor List See all 22 articles
Billing ★ API Docs Email Overage Upgrading Your Plan Reopening a Closed Account Updating Your Payment Details Updating Billing Details Free Plan See all 9 articles
API and Integrations ★ API Docs cPanel/WHM Plugin Slack App SMTP2GO WordPress Plugin Setting Up Webhooks
DNS Setup ★ API Docs DNS Setup for Weebly DNS Setup for Squarespace DNS Setup for 1&1 IONOS DNS Setup for Wix DNS Setup for Namesco DNS Setup for Network Solutions See all 28 articles