Em chekc bao như vậyhttps://mxtoolbox.com/ vào đó rồi mục black list điền domain rồi chạy xem có trong black list ko.
mx:lekhuyenmobile.comFind Problems Solve Email Delivery Problems
mx
Test | Result | ||
---|---|---|---|
DMARC Record Published | No DMARC Record found | More Info | |
DNS Record Published | DNS Record not found | More Info | |
DMARC Policy Not Enabled | DMARC Quarantine/Reject policy not enabled | More Info |
ABOUT THE SUPERTOOL!
All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool. Input a domain name or IP Address or Host Name.Links in the results will guide you to other relevant tools and information. And you'll have a chronological history of your results.If you already know exactly what you want, you can force a particular test or lookup. Try some of these examples:
(e.g. "blacklist: 127.0.0.2" will do a blacklist lookup)
Command | Explanation | |
blacklist: | Check IP or host for reputation | |
smtp: | Test mail server SMTP (port 25) | |
mx: | DNS MX records for domain | |
a: | DNS A record IP address for host name | |
spf: | Check SPF records on a domain | |
txt: | Check TXT records on a domain | |
ptr: | DNS PTR record for host name | |
cname: | DNS canonical host name to IP address | |
whois: | Get domain registration information | |
arin: | Get IP address block information | |
soa: | Get Start of Authority record for a domain | |
tcp: | Verify an IP Address allows tcp connections | |
http: | Verify a URL allows http connections | |
https: | Verify a URL allows secure http connections | |
ping: | Perform a standard ICMP ping | |
trace: | Perform a standard ICMP trace route | |
dns: | Check your DNS Servers for possible problems New! | |
Other tools |