email address validation

[Tony]

Hi All

 

This is probably discussed somewhere but since I get zero search results, I've had to ask. I've just tried to add my own email address to an new account as a trial and I get an invalid email address message. The email address is valid but perhaps is not a common enough domain.

 

i.e. it ends with .bpa.nu which is a freebie domain system here in Oz.

 

So my question is, what is the email validation routine that rejects this address, or is there an option that I have yet to find, or have I got a misconfiguration in the setup.

 

TIA

[Jan0815]

In email options you can disable the DNS-lookup. That should solve your problem.

 

HTH

[Tony]

Hi jan

 

Thanks, I have checked that and I am not sure why this should work/fail.

 

The domain name is a valid domain and dig/nslookup finds it.

 

However, what interests me even more now is that having left the customer register screen sitting with the error message I returned to the admin area in another browser and within the customer lookup the account exists. Hence I assume that even though the email was rejected the database was actually updated with the new record. I have since closed all browsers and then logged in as the user without any problem.

 

I have not looked at the code as yet but it appears that there is some bug in the way it handles this error.

[Jan0815]

The validation is being handled by the file catalog/includes/functions/validations.php. You can take a look at how this routine handles your mail address and why the error occures. As I do not have your full mail address you used I cannot replicate the behaviour you experienced.

 

HTH

[Tony]

Hi

 

Hmmm... ok I have looked and I am not a php or regex guru, but from what I can read it seems that the email address is split into segments based on the '.' and if there is a two char rightmost segment then it is ignored and treated as a country code. Once this is truncated from the address then the rightmost segment is compared to this list.

 

case 'com':

case 'net':

case 'org':

case 'gov':

case 'edu':

case 'int':

case 'biz':

case 'mil':

case 'info':

case 'name':

case 'aero':

case 'coop':

case 'museum':

 

 

Naturally, if the top-most domain is a two character domain (i.e 'nu' which is a global top-level domain for 'network-users') then this is scrapped as a country code, leaving the next section to be tested as a top-level domain against the list.

 

But if I add the bpa or nu sections of my domain name to the list it still fails, so I figure I have some way to go to fix this.

 

The full domain is marblebay.bpa.nu and info can be used as a test username.

 

If I do a dig from my linux box to the outside world then I get an A and MX record showing. So I think that the email failure is occuring in the script before it gets to the last test for DNS lookup. However, I am wanting to understand what the piece of code is calling here:

 

!checkdnsrr($domain, "MX")

 

Is this an osc function or a PHP inbuilt function for checking dns entries?

 

cheers

Tony

[burt]

Naturally, if the top-most domain is a two character domain (i.e 'nu' which is a global top-level domain for 'network-users') then this is scrapped as a country code, leaving the next section to be tested as a top-level domain against the list.

 

.nu is not a global TLD, it is the code for a small island in the middle of nowhere called Niue - therefore it is a country code and should be validated as such...

 

I have just tested this and with DNS checking ON, the .nu domain does not validate. With DNS checking off, it does..

[com2]

!checkdnsrr($domain, "MX")

 

Is this an osc function or a PHP inbuilt function for checking dns entries?

 

checkdnsrr

(PHP 3, PHP 4 >= 4.0.0)

 

checkdnsrr -- Check DNS records corresponding to a given Internet host name or IP address

Description

int checkdnsrr ( string host [, string type])

 

 

Searches DNS for records of type type corresponding to host. Returns TRUE if any records are found; returns FALSE if no records were found or if an error occurred.

 

type may be any one of: A, MX, NS, SOA, PTR, CNAME, or ANY. The default is MX.

 

Host may either be the IP address in dotted-quad notation or the host name.

 

Note: This function is not implemented on Windows platforms.