North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: What *are* they smoking?
On Tue, Sep 16, 2003 at 01:18:26AM +0200, Jeroen Massar wrote: > > Even worse of this is that you can't verify domain names under .net > any more for 'existence' as every .net domain suddenly has a A record > and then can be used for spamming... > > From: Spammer <[email protected]> > To: You <[email protected]> > > Thank you Verisign! Now we need to check for existence of an MX > and then just break a couple of RFC's in the process :( Checking for NS or SOA record(s) is sufficient, neither are being returned, only A records. Of course, you could just block anything that resolves to netsol. -- Matthew S. Hallacy FUBAR, LART, BOFH Certified http://www.poptix.net GPG public key 0x01938203 Attachment:
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