Re: Why can't this XP machine send email to a particular Yahoo account?



"TomYoung" wrote in message news:bede44d9-7589-47b8-884e-62c93b8ce06e@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi all:

I've got a simple 2-machine home network, with the two machines
connected to the Internet via a router. One machine runs Vista, one
runs XP.

That doesn't stipulate that you are using one IP address (for the WAN-side of a NAT router) or have separate IP addresses for each of your hosts (and going out through a non-NAT router). You might be sharing one IP address from your ISP by using a NAT router. You might have paid to get two IP addresses from your ISP and are using just a router (no NAT function) so each host is seen as having a different IP address. In the latter case, it is possible that one of your hosts is on a spam blacklist so e-mails sent from there will get rejected or blocked.

Up until a short time ago both machines could send email to a
particular Yahoo account; let's call it someone@xxxxxxxxxx A week or
so ago it became apparent that the XP machine could no longer send
email to this particular account: the message would go into the
Outbox and then settle into the Sent Items folder after communicating
with the email server, but the recipient would not receive the
message. There was no local failure message, no "bounce" message from
the receiving server and the message didn't end up in the recipient's
spam bucket. The message just seemed to disappear into bit and bite
heaven.

The draft of a new e-mail is saved in the Drafts folder as you compose it. When you send that message, it moves into the Outbox from where the e-mail client will issue a copy to the mail server. If and only if a good status (+OK) is received from the mail server by the e-mail client then the e-mail client moves that message into the Sent Items folder (unless you configure it to go elsewhere). So if the message moved from the Outbox to the Sent Items folder then your e-mail client was told by the mail server that the mail server successfully received that message. Your e-mail client cannot do anything regarding the actual delivery of your message. It's not in the loop anymore.

The problem is with your sending mail server in not delivering some of your messages. It is also possible that you are inserting content into your e-mails sent from the Windows XP host that you are not inserting into e-mails sent from your Windows Vista host, and the sending mail server, receiving mail host, or recipient are triggering on that extra content, like marking it as spam.

Carbon copy yourself on some outbound test e-mails. If those e-mails show up in your Inbox when using the webmail interface to your e-mail account (or they successfully get yanked down to your e-mail client) then obviously your sending mail server got your message from your e-mail client and there is nothing wrong with your local e-mail client setup.

The Vista machine can still send messages to someone@xxxxxxxxxx

The XP machine can still send messages to other Yahoo accounts: a
message to someone_else@xxxxxxxxx shows up just fine. For some reason
messages sent to this one particular account - someone@xxxxxxxxx - are
failing silently.

Maybe someone@xxxxxxxxx has a rule that blocks or deletes e-mails with whatever content is within them when you compose them on your Windows XP host.

I've deleted the recipient's contact information in the XP machine's
Address Book and created the recipient's information from scratch.
Still doesn't work.

Won't help. Your sending mail server already successfully got your message. That is evident because the server sent back an +OK status when it received the message which caused your e-mail client to move the local copy of that message from the Outbox to the Sent Items folder.

Got Google's Desktop installed on the Windows XP host?

It is likely that you will need to see the raw source for e-mails that you send from your Windows XP and Vista hosts that are received by the intended recipient. The e-mails are not showing up at the recipient for those you send from your Windows XP host but maybe the recipient needs to disable any spam filtering or server-side rules they defined in their e-mail account (and have them use the webmail interface to their e-mail account rather than whatever software environment they are using for a local e-mail client). Get rid of the recipient's host and its setup from interferring with receipt of your e-mails and have the recipient use the webmail interface only to monitor for your test e-mails sent from both of your hosts.

.



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