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Validate email by MX lookup · **Released**: 04-07-2002

This simple little hack will verify email addresses during registration and updates of profiles by doing an MX lookup against the domain to ensure somebody is accepting email for it.

It won't tell you if the actual user is valid on the domain, but it will prevent fake domains backing up in your mail spool and slowing everything down.

It requires one new error template and two simple code additions to register.php and member.php. Instructions attached.

Erwin · #12 04-11-2002, 07:08 AM

This is a wonderful hack and should be integrated into vB3 I reckon! Two thumbs up.

inetd · #13 04-11-2002, 08:11 AM

Good! Hack must be integrated into vB3! Very cool!
Thanks for hack, fastforward!

hypedave · #14 04-11-2002, 01:44 PM

for some reason it didnt work on these domains for me

@yahoo.com
@hotmail.com
@excite.com

fastforward · #15 04-11-2002, 02:15 PM

Quote:

Originally posted by hypedave
for some reason it didnt work on these domains for me

@yahoo.com
@hotmail.com
@excite.com

What do mean by 'it doesn't work'? It works for me on all those domains. Lets face it, it's unlikely any of those would have broken DNS and MX records set up.

hypedave · #16 04-11-2002, 02:19 PM

well lets see for some reason, it came back with the error that those were invalid email account, and I tested using my email accout from those domains,

Erwin · #17 04-11-2002, 02:23 PM

Well, hotmail.com, yahoo.com etc. all work for my forums with this hack. That is when I don't ban them.

hypedave · #18 04-11-2002, 02:26 PM

I will try it one more time, when user registration isnt full, it jus bothers me that a simple hack thats supposed to check a domain to make sure its a domain tell me that the 3 domains I tryed for the most popular email accounts on my forum are invalid

Ian · #19 04-11-2002, 06:46 PM

Quote:

Originally posted by hypedave
I will try it one more time, when user registration isnt full, it jus bothers me that a simple hack thats supposed to check a domain to make sure its a domain tell me that the 3 domains I tryed for the most popular email accounts on my forum are invalid

You must have the hack installed wrong... It works fine for me.

Takara · #20 06-10-2002, 12:16 PM

Quote:

Originally posted by hypedave
for some reason it didnt work on these domains for me

@yahoo.com
@hotmail.com
@excite.com

Do do do do, I hate to bring back hacks from the hack graveyard, but since Im installing this one I thought I should mention that the mx lookup doesnt work on win32 binary releases.

So, ppl with WINNT and 2K servers are out of luck.

Jawelin · #21 06-26-2002, 12:19 PM

This nice hack worked fine to me since I installed it months ago.
Now, suddendly, it stopped working on the same server and any UserCP update returns the error:

Code:

Warning: getmxrr() is not supported in this PHP build fullpath/member.php on line 457

On the server is installed PHP v4.2.1 and I have VB v2.2.6

Is there any php.ini config item missing or mistyped to enable the getmxrr() function ?

Thank you very much.

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