Yahoo Email Addresses - Non Delivery.

Skatiechik · **Yahoo Email Addresses - Non Delivery. -** 25/02/2008, 10:22 AM

Hi,

I run four forums (phpbb) and Yahoo/BtInternet refuses to accept any mail delivery to users from my four different domains.

I have tried contacted them about it but nothing seems to happen. Any suggestions?

**Matt** · **Re: Yahoo Email Addresses - Non Delivery. -** 25/02/2008, 10:27 AM

Yahoo have recently started using Greylisting for their email. Now, BT also use Yahoo servers for part of their email services (those powered by BTYahoo).

We see this on our own servers and after a while the mails do go through but in situations like this - if Yahoo think the mail is spam, they will reject it.

There isnt much we can do as the servers are not blacklisted but more the message content.

Matt

Skatiechik · **Re: Yahoo Email Addresses - Non Delivery. -** 25/02/2008, 12:01 PM

Cheers for the reply. Not much that I can do then other than let users know not to use yahoo/bt email addresses for their forum accounts

**Kieran** · **Re: Yahoo Email Addresses - Non Delivery. -** 25/02/2008, 4:04 PM

I assume you have tried an SPF record? I had issues with some of my forums to a range of "free" e-mail addresses until I ensured the SPF record was set correctly on the domains in question.

Skatiechik · **Re: Yahoo Email Addresses - Non Delivery. -** 26/02/2008, 12:54 PM

Er no...Haven't the foggiest what is. I will have a google to see what it is, otherwise would appreciate any advice on what could help.

**UncleSteve** · **Re: Yahoo Email Addresses - Non Delivery. -** 28/03/2008, 7:39 PM

Quote:

Originally Posted by Kieran

until I ensured the SPF record was set correctly on the domains in question.

What do you consider needs doing to ensure this please?

**Kieran** · **Re: Yahoo Email Addresses - Non Delivery. -** 28/03/2008, 8:21 PM

In WHM, go to Edit DNS Zone and select the domain you want to add an SPF record to.

Then add a new entry as follows:

Code:

domain.com. IN TXT "v=spf1 a mx ~all"

It should be obvious where the components of that line need to be written.

What this actually does:

Code:

v=spf1  This identifies the TXT record as an SPF string.

a	   Indicates the A record for your domain can send mail, in other words
            the xilo server on which your domain sits can send mail for your domain.

mx	 This allows the MX records for your domain to send mail. Normally this 
            actually equates to the same server as the A record but not always. Its best 
            to include it in case your domain has a slightly different setup.

~all	  Essentially means only servers specified above can send mail purporting to 
            be from your domain.

As always if you need anymore help, post up here.

**Matt** · **Re: Yahoo Email Addresses - Non Delivery. -** 28/03/2008, 8:29 PM

There is a much easier way than this now.

Simply go into the Email Authentication and enable SPF and Domain Keys. Ignore any errors at this time.

Matt

**Kieran** · **Re: Yahoo Email Addresses - Non Delivery. -** 28/03/2008, 8:32 PM

I don't know, all these new-fangled control panels.... bah everyone should be using a text based terminal

**UncleSteve** · **Re: Yahoo Email Addresses - Non Delivery. -** 28/03/2008, 10:45 PM

Quote:

Originally Posted by Matt

There is a much easier way than this now.

Simply go into the Email Authentication and enable SPF and Domain Keys. Ignore any errors at this time.

Matt

Okay, done that, comes back with...

Code:

SPF

SPF will specify which machines are authorized to send email from your domain(s). This means that only mail sent through this server will appear as valid mail from your domain(s) when the SPF records are checked.

    Status: Enabled, WARNING: SPF cannot be used because this server is not a DNS server for mydomain.co.uk [?]     
Your current raw SPF record is : v=spf1 a mx ?all

Do I need to make any other changes?

BTW Overwrite Existing Entries: is ticked.

Thanks

Steve