Port 25 Filters

SBC Internet Services (SBCIS) is taking positive steps to help combat junk email and spam. In addition to network upgrades, plus free spam filtering and anti-virus software that come with migrating to the SBC Yahoo! service, SBC is implementing outbound SMTP port controls to ensure the SBC network is as reliable as possible for our Members.

SBCIS began filtering Port 25 to separate outbound SMTP mail from dynamic IP mail. Most SNET Internet Members already use SBCIS SMTP mail servers for outbound email and will not be impacted by this filter.

Members not using SBC mail servers, such as a private company or university mail server, will not be able to send outbound email until one of the following actions are taken:

• Convert your outgoing mail to the SBCIS mail servers
• Contact your server administrator for information about alternate access methods allowing connectivity to the 3rd party mail server (i.e., VPN, Web mail or Outlook Web Access).
• Request that SBC removes the SMTP port filter from your account: on the SBC Yahoo! Abuse of Service Form, enter the details of your request in the Abuse Description field.

Additional Resources & Updates

These additional resources may be used if there is a possible issue with the SMTP port controls upgrade.

• Frequently Asked Questions

Thank you for your attention to these matters,

SBC Internet Services