Sendmail received at Gmail but not at Yahoomail

[warozzo]

Has anyone having this problem before? Just what the title said, it well received at Gmail (and any others) but not in Yahoo, not even in its Spam box.

Here's my code:

$email = '[e-mail]';
	$from	= "[e-mail]";
	$header = 'From: '. $from . "\r\n" .
			  'Reply-To: '.$from . "\r\n" .
			  'X-Mailer: phpmailer';
	$subject= "A test subject";
	$message= "A test message";

if(!empty($message)) {
	mail($email, $subject, $message, $header, '-f'.$from) or die("Sorry server probably busy");
	header('Location: /');
	exit;
}

Thanks.

[ixalmida]

You may be missing something in the email header that Yahoo looks for. Try to find out what headers their firewall looks for/filters. Alternatively, Yahoo may just have your domain/IP on their gray/blacklist. You may have to find out how to get your domain/IP into their whitelist.

[sneakyimp]

You might find this post informative.

The basic idea is that sending mail out from your server is not enough to get it delivered. You should be checking the result of your mail function for success or failure.

In your case, I'd be the mail is getting sent but there's something incomplete about your server's configuration and your outgoing emails are getting spam filtered.

You may find it helpful to create an SPF record.

[ixalmida]

I just thought of something else. There's a growing trend of ISPs blocking all email sent via port 25. The theory is that this will reduce spam, since most spam is sent insecurely. I'm not sure how many ISPs are doing this or where, but sources tell me that all California ISPs are doing it.

So whether or not this is causing your issues or not, it would pay for you to configure your email to send using SSL (usually port 465). There may be a trick to installing a certificate, but it would most depend on your email client/server.

[dalecosp]

The simplest workaround for portblocks on 25 is to use the submission port (587) instead.

[sneakyimp]

I don't think the port issue matters here. The code he typed is using the mail function so it's going to rely on the mail configuration of the server that is running the PHP script. I don't think outgoing mail is going to advertise what port was used locally on his server.

That the mail arrived at gmail means that his php script successfully hands off mail to the local MTA and that MTA tried to deliver it to the remote server. My guess is that when Yahoo receives the incoming mail from [e-mail] that it does an SPF lookup for example.com and then it either fails to find any SPF record or finds one that doesn't mention the server that sent the mail. In either case, the message flunks the SPF test and is quietly discarded.

[dalecosp]

Well, I might tend to agree ... I was simply mentioning that a blocked port 25 doesn't necessarily mean you have to start running an SSL-enabled MTA; there are plenty of ways to get around it (or, at least, I can name two).

You might be right about SPF lookups; since the OP doesn't give us him actual domain name (which is OK, I suppose), we can't actually do anything but speculate on that, however.

One of my actions in tracking down this real issue would be to SSH in to my server (assuming it was me and my server having the problem) and run an SMTP session over Telnet and see what sort of answer I got. If there's not any access to terminal/SSH, I suppose you might try some variation of the -D or -d flags in the "additional parameters" section of your mail() call (param #5) ... I've never played with that, though, so YMMV.

[toucan]

For info, my server does not have spf records set up and I regularly send to yahoo without problem. I did occassionally have problems where the reverse dns record didn't match the sending domain but with a dns alteration that's all sorted. I don't send securely either.

How about running your script on a server that normally has no problems talking to yahoo...