Why can I receive but not send messages through Mail?

OK, I emailed the raw data text from the email through my Yahoo account.

Thanks,

Andy

Andy,

There was not much to go on, in the message info. I have emailed your .mac account, strictly as a test to see if all goes normal.

I have also emailed you the message I received from your Yahoo account, in full Raw Source, to ask if you could explain certain headers, that are familiar to me. They suggest to me some sort of scanning going on.

Can you take your MacBook Pro to another location, such a cafe with wireless, and test. I think some ports may be blocked by your ISP, whoever that is.

Are you sure you are connecting with your own wireless router?

Ernie

Ernie, I have a meeting in the morning at a cafe with WiFi. I will try emailing from my troubled email accounts.

As far as my wireless router/connection, nothing has changed on my end. I run through an Airport Extreme base station to a cable modem for hi-speed wireless. My computer does "see" other wireless connections available in my neighborhood, but all are protected (as is mine).

I am beginning to think that something has changed with my ISP and that what used to work, no longer does. I did call my cable company to check this out, but they were not very helpful. Their take on things is that if I can get online, everything is good on their end.

I'll let you know how it goes from the internet cafe in the morning.

Thanks for all your help and suggestions,

Andy

Andy,

With the smtp.mac.com, use Port 587 as I am sure you would.

Ernie

Btw, in the earlier message I meant to say those headers were unfamiliar to me.

Message was edited by: Ernie Stamper