Re: [v6z] Re: Yahoo! Mail Issue

2011-04-16 Thread Scott Howard
On Tue, Apr 12, 2011 at 2:22 AM, Nathanael C. Cariaga < nccari...@stluke.com.ph> wrote: > ps. I'm just wondering why yahoo doesn't inform their users that the email > that they sent was blocked because of their servers were listed in a > blocklist (inspite that the server is able to return a corr

Re: Yahoo! Mail Issue

2011-04-12 Thread Jay Ashworth
- Original Message - > From: "Nathanael C. Cariaga" > Thanks anyway. I just find this issue intriguing since not all Yahoo > mail accounts are affected. In addition, incoming mails from other > domain doesn't seem to be affected. That is why I want to check if it > is a network issue :)

Re: Yahoo! Mail Issue

2011-04-12 Thread Suresh Ramasubramanian
Tell you the truth, you shouldnt be dropping the connection right at the smtp banner with a 5xx - return it after RCPT TO. On Tue, Apr 12, 2011 at 2:52 PM, Nathanael C. Cariaga wrote: > Oh well... Just have to inform our users :( > > Thanks! =) > > > ps.  I'm just wondering why yahoo doesn't info

Re: Yahoo! Mail Issue

2011-04-12 Thread Nathanael C. Cariaga
Oh well... Just have to inform our users :( Thanks! =) ps. I'm just wondering why yahoo doesn't inform their users that the email that they sent was blocked because of their servers were listed in a blocklist (inspite that the server is able to return a correct reject code 550) On 4/12/

Re: Yahoo! Mail Issue

2011-04-12 Thread Matthew Petach
On Tue, Apr 12, 2011 at 12:12 AM, Nathanael C. Cariaga wrote: > Strangely though I noticed that the email accounts that seems to be affected > by our concern seems to be related to the Yahoo SG servers. > Oh. You don't seem to want to accept connections from the singapore servers at all: -b

Re: Yahoo! Mail Issue

2011-04-12 Thread Nathanael C. Cariaga
Strangely though I noticed that the email accounts that seems to be affected by our concern seems to be related to the Yahoo SG servers. On 4/12/2011 3:04 PM, Christopher Balmain wrote: We had a lot of issues delivering mail to yahoo.com.sg about a year ago (just the .sg domain, plain .com

Re: Yahoo! Mail Issue

2011-04-12 Thread Christopher Balmain
We had a lot of issues delivering mail to yahoo.com.sg about a year ago (just the .sg domain, plain .com was fine). Could establish connection but it'd die halfway through transferring mail. A static route to drop the MTU (for their subnet only) to 1000 fixed the problem right up. Not sure if pmtu

Re: Yahoo! Mail Issue

2011-04-11 Thread Nathanael C. Cariaga
Just to clarify, the problem we are encountering is that emails sent from yahoo does not seem to reach our mail server (even any of our MX records / anti-spam servers). We have neither implemented any of the items you have said (still in the process of doing so). I tried to interview our emai

Re: Yahoo! Mail Issue

2011-04-11 Thread Joshua William Klubi
Well yahoo's mx tend to do that a lot. i used to have a lot of bounced emails to yahoo until i implemented dkim, domainkeys and spf then all my yahoo problems disappeared , I just want to know if you have implemented any of these technologies dkim,domainkeys and spf, other wise you would have all

Re: Yahoo! Mail Issue

2011-04-11 Thread Nathanael C. Cariaga
Thanks anyway. I just find this issue intriguing since not all Yahoo mail accounts are affected. In addition, incoming mails from other domain doesn't seem to be affected. That is why I want to check if it is a network issue :) -nathan On 4/12/2011 1:17 PM, Matthew Petach wrote: On Mon, A

Re: Yahoo! Mail Issue

2011-04-11 Thread Matthew Petach
On Mon, Apr 11, 2011 at 9:54 PM, Brielle Bruns wrote: > On 4/11/11 10:47 PM, Matthew Petach wrote: >> mpetach@opstools1:~>  telnet 219.90.94.56 25 >> Trying 219.90.94.56... >> Connected to static-host-219-90-94-56.tri.ph. >> Escape character is '^]'. >> ehlo yahoo.com >> 554 SMTP synchronization e

Re: Yahoo! Mail Issue

2011-04-11 Thread Brielle Bruns
On 4/11/11 10:47 PM, Matthew Petach wrote: mpetach@opstools1:~> telnet 219.90.94.56 25 Trying 219.90.94.56... Connected to static-host-219-90-94-56.tri.ph. Escape character is '^]'. ehlo yahoo.com 554 SMTP synchronization error Connection closed by foreign host. mpetach@opstools1:~> I imagin

Re: Yahoo! Mail Issue

2011-04-11 Thread Matthew Petach
On Mon, Apr 11, 2011 at 9:28 PM, Nathanael C. Cariaga wrote: > Hi All, > > It seems that we're having some problems receiving emails from selected > Yahoo! Mail Accounts.  I noticed that there is a commonality between the > accounts that fails when sending an email to our domain (see email header

Yahoo! Mail Issue

2011-04-11 Thread Nathanael C. Cariaga
Hi All, It seems that we're having some problems receiving emails from selected Yahoo! Mail Accounts. I noticed that there is a commonality between the accounts that fails when sending an email to our domain (see email header below) From: "mailer-dae...@nm1.bullet.mail.sg1.yahoo.com" To: