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25 lut 2010 · Connection refused means that the port you are trying to connect to is not actually open. So either you are connecting to the wrong IP address, or to the wrong port, or the server is listening on the wrong port, or is not actually running.
11 mar 2024 · Gdy pojawia się błąd związany z niepoprawnym portem SMTP, należy sprawdzić, czy używany port jest zgodny z wymaganiami serwera SMTP. Standardowy port SMTP to 25, jednak niektóre dostawcy mogą wymagać użycia innego portu, np. 587.
Connection refused or inability to open an SMTP stream. This error normally refers to a connection issue with the remote SMTP server, depending on firewalls or misspelled domains. Double-check all the configurations and in case ask your provider.
10 gru 2020 · According to your error, your website was rejected when connecting to the Exchange server, typically this error is returned for one of the following reasons: SMTP settings are incorrect (wrong port, security setting, incorrect host). Your web server is blocking the connection.
7 wrz 2023 · Connection errors can be caused by many different factors such as a firewall blocking port 25, an outdated version of the mail server software, or a misconfigured DNS server. What you need to know: Connection problems with mail servers can lead to timeouts and delays in sending emails.
5 gru 2011 · Your program is trying to relay email via an SMTP server on the same machine but the SMTP server. WHen the program attempts to open the connection, that connection fails. Most likely, you don't have an SMTP server running on that machine.
The postfix cannot connect to the external smtp server (mail.mydomain.com), and you can't connect with telnet either. Perhaps you have a firewall (at your ISP) that blocks the outgoing smtp. This is common to block spam.
