SMTP Alternate
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TCP — Email
Visão geral da porta
O que é a porta 2525?
Port 2525 is a commonly used alternate SMTP port for outbound email submission, particularly useful when ISPs block the standard ports 25 and 587. Many email service providers like SendGrid, Mailgun, and Postmark support port 2525 for SMTP relay. It is especially popular for cloud hosting environments where port 25 is blocked by default.
Considerações de segurança
A porta 2525 (SMTP Alternate) é classificada como risco médio. Embora este serviço seja comumente exposto, considere usar alternativas criptografadas quando disponíveis.
Recomendação: Mantenha o serviço atualizado. Monitore os logs em busca de atividades incomuns.