GynCorp Mail — outbound relay
mta04.e1corp.com.br · 169.58.100.203
What this server does
This host is a dedicated outbound SMTP relay for GynCorp Mail, our own email delivery platform. It accepts authenticated submission on port 587 from a single application server and delivers messages to recipient mail servers. It hosts no websites, mailboxes or other services.
Mail sent through this relay is transactional and marketing email for clients of GynCorp, delivered only to recipients who explicitly opted in to receive it.
Configuration
| Hostname | mta04.e1corp.com.br |
|---|---|
| Reverse DNS | Matching PTR, forward-confirmed (FCrDNS) |
| Authentication | SASL required; not an open relay |
| Transport security | STARTTLS required on submission; opportunistic TLS outbound |
| SPF | Published, restricted to our relay IPs |
| DKIM | 2048-bit RSA signing on every message |
| DMARC | Published with aggregate reporting |
Anti-abuse practices
- One-click unsubscribe (RFC 8058) plus a visible unsubscribe link in every message.
- Automatic suppression of hard bounces and of any address that files a complaint.
- Asynchronous processing of delivery reports (DSN) and feedback loops (ARF).
- Per-IP daily sending limits with a gradual warm-up that steps back automatically if bounce or complaint rates rise.
- Recipient lists are collected with explicit opt-in; purchased and scraped lists are not accepted.
Reporting abuse
If you received unwanted mail from this server, or need to report abuse, write to abuse@e1corp.com.br. We act on every report and suppress the reported address immediately.