What sender reputation means
Photo: Avila Ops Tecnologia
Sender reputation is each provider’s score for your domain and sending server. History determines it: opens, spam reports, nonexistent addresses, sudden volume changes. High scores reach inboxes. Low scores mean spam or rejection.
Low-volume senders feel every message’s weight. A month of welcomed emails builds solid reputation; one careless blast to an old list can destroy it in a day.
What improves or damages reputation?
It improves when recipients demonstrate interest: opening, replying, clicking, removing from spam, adding contacts. Regular volume and correct SPF, DKIM and DMARC help too; see SPF, DKIM and DMARC without jargon.
It declines when:
- Someone reports spam. One report per 1,000 sends already warns Gmail.
- Addresses do not exist and messages bounce. Many invalid addresses suggest old or purchased lists.
- Volume jumps. Twenty daily messages suddenly becoming 5,000 looks like compromise.
- Messages hit traps maintained by providers and antispam services to catch permissionless senders. Purchased lists contain them: https://avilaops.com/guias/lista-comprada-destroi-a-entrega/.
Does reputation belong to domains or addresses?
Both, and servers too. Gmail evaluates domains, such as suaempresa.com.br, server source IP and specific senders. Shared email services inherit some neighbor reputation. Free email reputation belongs to Google rather than you, building nothing of your own.
Owning domains therefore matters beyond appearances. They retain trust history from every delivered email.
What to do now
Begin with domain email authenticated from day one. Then maintain lists and pace. Avila Ops provides [email protected] for R$ 10 per mailbox/month, ready today without setup fees: avilaops.com/email-profissional or contact us on WhatsApp: wa.me/5517997811471.
Frequently asked questions
How can I check domain reputation?
Free Google Postmaster Tools shows spam reports, authentication and sending-rule compliance for Gmail recipients. Since 2025 it no longer displays domain/IP reputation scores and only shows data with relevant volume. Small companies learn much by testing their own Gmail, Outlook and Yahoo accounts.
Can poor reputation be repaired?
Yes, over weeks. Stop the damaging behavior, clean lists, send only to engaged people and gradually raise volume. There is no paid shortcut.
Does changing domains fix it?
It postpones it. New domains lack history, also unfavorable; unchanged behavior damages scores again. Switching makes sense only when the old domain was compromised.
Turn what you learned into your next step.
Tell us about your company and what you want to improve. We can explore the right tools, integrations or custom project together.