Sending services
- Which applications and providers send each message type?
- Which domains and sender addresses do they use?
- Who owns the service account and domain configuration?
- Are any old senders still needed?
Resources / Sender inventory
Which services send mail for your business?
Prepare an inventory before changing authentication records or moving providers. This page does not authorize a DNS or account change.
Configuration and events
- What authentication is configured for each legitimate sender?
- Where are provider responses and later events recorded?
- How are bounces, suppression and retries handled?
- Who maintains templates and important links?
Before a change
Preserve the current configuration securely, review current provider instructions and agree exact changes with the owner. Use approved test destinations and define how to restore the previous setup if necessary.
Keep private material out of the first inquiry.
Provide a summary rather than keys, recipient lists or raw messages. Detailed diagnostic evidence can contain addresses, routing information and private content.