It is people in a foreign country which you can tell. Which I normally would not have a problem - but there are horrible connections.

Even set up a new comcast password 3 times. Renetered that same password in the incoming mail server and the outgoing mail server. ALL with absolutely no success. Called Comcast twice and was passed around to muliptle folks. Then was passed to their Infinity SIgnature Support - you could obvisouly tell you were speaking to somoene in a foreign bad connection and he asked me all the same questions as the othe 2 folks.

In the Incoming email server field ³ enter in: imap.comcast.net and from the Account type drop-down 4, select IMAP4 In the User name field ¹ enter in your Comcast user name. This is the first part of your email address – the part before @comcast.net. Click the Next button to begin the setup. Note: if the Welcome message doesn’t appear, jump down to the Create New Account section below. When you’re asked if you want to set up Outlook to connect to an email account, make sure that Yes is selected and then click the Next button.

Open Mail and then open Preferences. Select the Comcast account. In the Account Information pane select the Outgoing Mail Server dropdown and choose Edit SMTP Server list. Select the account and then select Advanced tab. Insure that authetication is Password and the correct user name is entered and that you have entered the correct password if it is there at all.

There’s an important issue to be underlined, however: if you plan to do bulk email marketing, you should opt for a. In fact, a normal outbound service like Comcast’s SMTP server puts a limit to the number of people you can send the same email to (in order to deter spammers), and to the number of single emails you can send per day. Also, working with shared IPs, it cannot guarantee a good deliverability for your emails (that is, a number of your messages will simply rejected by antispam filters and get lost without you even knowing).

Have a MAC PRO and MacBook Pro on the same network both running OS 10.8.2 with two identical email accounts having identical settings. MAC PRO email accounts work as expected; able to send and receive emails. However on the MacBook PRO, unable to send emails from either account, only receive emails. I have the same email problem when using the MacBook PRO on different networks, like a Hotel. Consistently get an error message stating “the sender address was rejected by the server smtp.comcast.net.” Tried deleting the accounts, restarting and entering new accounts; reinstalled OS 10.8.2; but no difference in the problem. Worked with several layers of Comcast support, trying all sorts of Port and SSL settings, and confirmed my password works on Comcast webmail, but cannot determine why I cannot send email from one Apple computer when the other Apple computer works as expected. All they could do is blame Apple.

Why pay for a service you can't understand, hardly hear on the line and then give NO (zero) creidibility that they can actualy solve your problem. No wonder there are so many sites outside of Comcast that have compalinst about Comcast. Sullivanmt wrote: I have the exact same issue. I can send emails just cannot recieve emails.

This is the first part of your email address – the part before @comcast.net. For example, if your email address was simplehelp@comcast.net, you would enter simplehelp as your User name.

If you're connected directly to Comcast's network (which you are when you're connected through your cable modem), you should be able to send through their SMTP server. That's how Time-Warner and Verizon work, for example. The first thing you're going to hear is 'Well, you're not using your Comcast E-mail account.' And why would anyone use the obscure Comcast-assigned E-mail address in 2013? Had this issue once and found this to be the solution: 1.

From here, click the + Add account button. • From the Choose an account list, scroll down and select Advanced setup • From the Advanced setup list, select the second entry, Internet email • Now you’re going to enter a bunch of settings. The first is to add an Account name¹. This can be anything at all, but descriptive is usually best. Next up, enter the name you want your email to be “sent from” ². Typically this would be your first and last name. In the Incoming email server field ³ enter in: imap.comcast.net and from the Account type drop-down 4, select IMAP4 • In the User name field ¹ enter in your Comcast user name.

Make sure that 'Use SSL' is checked and that 'Authentication' is set to Password and that the 'Server Port' is set to 587. From there, head back to the main Mail settings page and tap 'Advanced'. In here, make sure that 'Use SSL' is on, 'Authentication' is set to 'Password' and that the 'Server Port' is on 995. Once you have done this, your email account should be completely set up and ready to receive and send emails. If this setup procedure does not work for you, we recommend changing your Comcast email account from POP to IMAP.

Anon104364 wrote: What you have shown for the iPhone5 settings is NOT correct, it is much easier than you noted. The following is correct.

Once you do that, you should see a page that looks like this: 8. From here, in the 'INCOMING MAIL SERVER' area, make sure that your Comcast username (without @comcast.net) is in the 'User Name' field. Also, make sure that 'Host Name' is mail.comcast.net. Once you’ve done that, tap the 'SMTP' button. Make sure 'Server' is turned on, then under 'OUTGOING MAIL SERVER', make sure 'Host Name' is set as smtp.comcast.net and that 'User Name' is still your Comcast email without @comcast.net.

Half-way down the list, however, look closely and you’ll see “Email Filters” as an option. Not only that, you’ll see how many filters you have in place, as I see “You have added 1 filter”.

What I found is that you need to fool the Apple email clients for OS X and iOS 7 into believing that you're NOT connecting to a Comcast server initially, because if you tell those clients you have a Comcast account, they decide to set your email client up with -- you guessed it -- a POP3 account. Here are some instructions on what you other Comcastic customers can do to sign up for IMAP and set up your OS X and iOS devices (note that images and instructions below are written for OS X Mavericks and iOS 7). Request a Comcast IMAP account By default, you're still stuck with a Comcast POP3 account if you sign up for their service.

Did you match the screenshots and save everything? Did you try to change your password to one that includes at least an upper case letter, a lower case letter, and a digit? Is the name field something other than Comcast? How many messages are you saving on the server? Is it possible that one of the messages on the server is messed up? Can you use the web-based mail to move all messages around the time it stopped working into a folder on the server?