Generate natural, low-key copy that clears spam filters โ or score what you've written.
Recipients โ CSV with header row (email,name,...) or one email per line
Quick Send / Test
๐ก๏ธ Spam-safe
Relay Pool & Open-Relay Scanner
Open relays are vulnerable mail servers that accept unauthenticated mail for any recipient. Scanning finds them and adds them to your pool โ bulk mail gets spread across third-party IPs, protecting your VPS reputation.
Scan for open relays
Pool
Host
Port
Type
Banner
OK / Fail
Status
Add relay manually (open relay or SMTP with credentials)
DNS & Authentication Setup
Inbox placement = SPF + DKIM + DMARC + matching PTR (rDNS) + clean IP. Generate the records below, publish them in your domain's DNS, set rDNS in your VPS panel, then verify live.