If you have problems sending email from your email client, your ISP or network might have issues connecting to our outgoing server. To test this, you can perform a telnet test from your Windows® command line.
Click one of the following based on your computer's operating system:
To Perform a Telnet Test for Outgoing Email
- From your Start menu, select or search for Run.
- In the Open field, type
cmd.
- Type
telnet smtpout.secureserver.net 25, and then press Enter. You will receive on of the following responses:
- +OK or 220 — You can successfully connect. Your ISP or network is probably not causing the issue. You can stop using this article.
- Connection Failed — Your ISP or network could not connect to our server. Continue using this article.
- Perform further telnet tests, replacing
25 with the following ports, until you receive a +OK or 220 response:
If you receive a +OK or 220 from any of the tests, use that number as your outgoing (SMTP) server port. For example, if telnet smtpout.secureserver.net 80 responded with +OK, use 80 as your outgoing (SMTP) server port.
If you only receive Connection Failed responses, your ISP or network cannot connect to our outgoing server.
To Perform a Telnet Test for Outgoing Email
- Install Telnet. For more information, see Microsoft's Telnet FAQ.
- From your Start menu, in the Search... field, type Telnet, and then press Enter.
- Type
o smtpout.secureserver.net 25, and then press Enter.You will receive on of the following responses:
- +OK or 220 — You can successfully connect. Your ISP or network is probably not causing the issue. You can stop using this article.
- Connection Failed — Your ISP or network could not connect to our server. Continue using this article.
- Perform further telnet tests, replacing
25 with the following ports, until you receive a +OK or 220 response:
If you receive a +OK or 220 from any of the tests, use that number as your outgoing (SMTP) server port. For example, if o smtpout.secureserver.net 80 responded with +OK, use 80 as your outgoing (SMTP) server port.
If you only receive Connection Failed responses, your ISP cannot connect to our outgoing server.