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MailCheck
Instant mail server health check - DNS, ports, SSL, blacklist reputation, open relay test
⚙️ Advanced Configuration
Advanced Configuration
DKIM Selectors (comma-separated)
default,selector1,selector2,google,k1,dkim,s1,s2,mail,email
Common DKIM selector names to check
RBL Servers (format: hostname:Name, comma-separated)
zen.spamhaus.org:Spamhaus,bl.spamcop.net:SpamCop,b.barracudacentral.org:Barracuda,cbl.abuseat.org:CBL,dnsbl-1.uceprotect.net:UCEPROTECT
Blacklist servers to check against
DNS Servers (comma-separated IPs)
8.8.8.8,1.1.1.1
DNS resolvers to use for lookups
Mail Server Domain
Enter your mail server domain (e.g., gmail.com, outlook.com, yourdomain.com)
Check Mail Server