| Frequently Asked Questions - "Port 25 Blocking" |
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| What, exactly, is blocked? |
| Cable One blocks outbound port 25 for residential-level customers with the exception of mail.cableone.net. |
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| Why is Cable ONE blocking Port 25? |
| Many Internet viruses spread through e-mail on unattended computers. This block of Port 25 stops any programs attempting to send mail from your PC. |
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| I use a hosted domain from another company and I have their SMTP mail server set up in my e-mail program. Does this disable me from using my e-mail address? Will all my e-mails now say myname@cableone.net? |
| No and no. You can still use a hosted domain and keep your same e-mail address. The SMTP server change to mail.cableone.net is virtually invisible to others. |
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| Will I notice that Port 25 is blocked? |
| Possibly. If your e-mail program’s SMTP setting is not mail.cableone.net you may get an error when sending mail. Just change the SMTP setting to mail.cableone.net. This setting is typically found in your e-mail program’s account set-up or options area. Changing this setting will not change your e-mail address or delivery of your mail, even if you don’t use a cableone.net e-mail address. |
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| I have a Hotmail account. Does this mean I have to use a cableone.net e-mail address? |
| No. The blocked Port described above just changes which e-mail server your program uses. Leave any POP3 settings in place. If you use a browser to get Hotmail, you won’t need to make any changes. |
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| I use AOL (or MSN Explorer) on Cable One.net. Does Port 25 Blocking affect me? |
| No. AOL and MSN should not be affected by the block. |
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| I’m a computer specialist and I run my own mail server from my home. Will I have issues with Port 25 Blocking? |
| Probably. Since this affects all residential-level accounts. You may need to upgrade to our small-office plan which permits this type of server access. |
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| How do I go about changing my SMTP settings? |
| Open the email properties for your email account within your email client. Change your Outgoing Mail (SMTP) server to mail.cableone.net. |
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