E-Mail and Xfinity Connect Help

[pa-ca]

I just started getting this message yesterday afternoon:

The sender address ******** was rejected by the server smtp.comcast.net.
Select a different outgoing mail server from the list below or click Try Later to leave the message in your Outbox until it can be sent.

My secondary comcast email address works just fine, though.  I'm receiving ok.

I have not changed any settings anywhere.

Can anyone help?

Thx

[CCCarole]

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pa-ca wrote:

I just started getting this message yesterday afternoon:

The sender address ******** was rejected by the server smtp.comcast.net.
Select a different outgoing mail server from the list below or click Try Later to leave the message in your Outbox until it can be sent.

My secondary comcast email address works just fine, though.  I'm receiving ok.

I have not changed any settings anywhere.

Can anyone help?

Thx

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Is that the entire error message you are receiving?  If not, copy & paste it into your reply.  Were you sending from Outlook?  (which version of Outlook please?)   Have you verified that the email address you are sending to is correct? No extra spaces, a period, etc. that shouldn't be in the email address? 

What happens when you send an email to yourself, do you receive it?

What port are you using for smtp?  And is SSL on? See the recommended settings for most versions of Outlook here> http://forums.comcast.net/t5/E-Mail-Help-Forum/E-Mail-Client-Settings-customer-generated/m-p/778889#...

[pa-ca]

Yes, that's the complete error message.

Using Apple Mail.  I've been using this same setup for years.

I cannot send an email to myself- same error message.

I cannot send a reply either.

Port is 995 for both email accounts, and SSL is on.  No settings were changed.

Again, my secondary comcast email account works fine for sending and receiving.

[BethKatz]

Check that the outgoing port is NOT port 25. It may be that you set it up years ago and used port 25 but when you set up the secondary account, you used something else. In Mail, click on Accounts and then the account that is giving you a problem. At the bottom of that panel is "Outgoing Mail Server". Click on the pop-up menu and choose "Edit SMTP Server List". Click Advanced. What port is being used?

It should be Use Custom Port 465, SSL selected, Password authentication, your userid (without the @comcast.net) and your password.

Click OK. Then also click on another account to make sure Mail saves the settings. Try again to send yourself mail.

If that doesn't work, report back here that you tried and report on exactly what message you see.

You can also try in Mail, Window menu and Connection Doctor.

[pa-ca]

Thanks Beth, that worked!

But now I'm baffled as to why it stopped working in the first place.  Especially since I hadn't messed with anything.  Weird.

Thanks again!

[BethKatz]

Comcast (and many other ISPs) don't want people using port 25 to send email because it is often used for spamming. Your primary email address probably received an email saying they were blocking port 25 because they detected spam being sent from your account. You probably were NOT sending spam. I got the message when I sent several messages closely together.

But once Comcast blocks port 25 on your account, they won't remove the block. It doesn't matter. The other ports work fine.