Get Email Sender's IP Address

[racertim]

This is for a tool I have that receives a lot commercial emails and it would only apply to that. It is not for emails that I receive from individuals with yahoo.com, gmail.com, or business accounts.

I'm familiar with retrieving and parsing email headers using imap_headerinfo. I found that imap_header retrieves the entire header as a string and that full header typically includes two IP addresses.

Should I just parse out these IP addresses? Do you know if they accurately represent the IP address of the server sending the email?

Thank you!

You can get their IP but only from your page with

$ip = $_SERVER['REMOTE_ADDR'];

[racertim]

No, that doesn't have anything to do with it.

For example. The store Target sends me an email. I want to get the IP address of the mail server they are using to send me that email.

you cant, because you need to code that when the server recibe the mail, read the mail ip... you cant... why do that ???

[phpuser]

Hi racertim,

As i know we get sender email address with his host name like "[e-mail]" so if we consider hostname as "www.google.com" then by this hostname you can get IP address with gethostbyname() php function

See link : http://php.net/manual/en/function.gethostbyname.php

We can say its one trick.

[racertim]

Its not the host name IP that I am looking for either because the email being sent does not necessarily come come from that server. In fact, with high volume senders, most of the time it doesn't. Thanks for the help.