Synchonize option is available for any email provider. |
Dial-Up/Cable/ADSL IP Addresses
These are generally determined by manually looking at the reverse DNS names. If you have a real mail server in one of these blocks, please let us know so we can correct this list, but you will also be tested to verify you?re not an open relay. Note that this list contains Cable Modems, ADSL, Dial-Up and no PTR netblocks.
Being on this list does NOT mean you are a SPAMMER, it means you are connected to the net via ADSL/Cable/Dial-Up connection, and your DNS shows this to be the case. You *should* be using your upstream ISP's mailserver.
dul.rbl-dns.com is a list of the world's dynamic IP addresses. Dial up connections, cable, broadband and ADSL customers. A list of netblocks where the address space is assigned dynamically to users and hosts regardless of the actual method of connecting those users and hosts to the network. Static IP addresses are NOT listed in DYN.
It is perfectly normal for dynamic IP addresses to be listed on the dul.rbl-dns.com. In fact all dynamic IP addresses are on the dul.rbl-dns.com. Dynamic connections could not have a mail server. The emails coming from this addresses are almost spam, hijacked PCs with worms or viruses.
dul.rbl-dns.com
DNSBL queries are structured by the inverse IP address as a subdomain of the DNSBL zone. For example, to check that the general DNSBL test address of 1.2.3.4 is listed in DYN, query 4.3.2.1.dul.rbl-dns.com with any NS lookup tool such as...
4.3.2.1.dul.rbl-dns.com
You will receive an address:
127.0.0.3 - Dynamic IPs (Dial up, ADSL, Cable, no PTR IPs)
dul.rbl-dns.com is included in bl.rbl-dns.com
Attention: DYN is checking only IPs and not Domain Names.
Do not use dul.rbl-dns.com to check Domain Names.
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If you are satisfied with our service, and you want the blacklists stay free for all users, we would be glad to receive a small or a big donation from you.
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