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Why has sending mail from my home computer suddenly stopped working?

April 26, 2017Computer Home mail stopped suddenly working

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Why has sending mail from my home computer suddenly stopped working?

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Posted

While there may be any number of reasons for the failure, lately there has been a trend among the big ISP’s to start blocking outbound network traffic intended for mailservers on the internet, such as mail.cs.utexas.edu. The reason for the change is typically cited as spam prevention, a goal which the department supports fullheartedly. We recommend using your ISP’s mail server as per their instructions (their tech support will have to help you with settings for your home mailer as we cannot guess at the proper settings); if this fails please do not hesitate to email gripe@cs.utexas.edu and we will try to help you resolve the problem. Again, please check with your ISP (cablemodem, DSL, wireless, or dialup provider) before asking us–if you cannottelnet mail.cs.utexas.edu 25successfully from the remote machine but can successfullytelnet mail.cs.utexas.edu 22 then you are definitely experiencing this problem and need to take it up with your ISP.