Why my emails are not sending?
Maybe you configured your mail client with a wrong outgoing server name: have a look at our list of SMTP and POP providers to double check it, or contact the provider. Firewall or antivirus issues. Make sure that you have an exception rule for your SMTP service in your firewall, proxy service or antivirus settings.
How do I fix not being able to send email?
Cannot send emails: How to fix email sending issues
- Check your internet connection. Yup.
- Check your SMTP server details.
- Verify all usernames and passwords.
- Check your SMTP server connection.
- Change your SMTP port.
- Control your antivirus or firewall settings.
How do you check SMTP server is working or not in Linux?
To check if SMTP is working from the command line (Linux), is one critical aspect to be considered while setting up an email server. The most common way of checking SMTP from Command Line is using telnet, openssl or ncat (nc) command. It is also the most prominent way to test SMTP Relay.
How do I troubleshoot email issues in Linux?
How do I troubleshoot outbound email on Linux?
- Check which MTA is being used. First, determine which mail transfer agent (MTA) you are using.
- Check the SMTP relay server.
- Check the mail logs.
- Check the mail queue.
- Send a test message from the command line.
- Send a test message from Eclipse.
Can receive email but Cannot send?
This error usually indicates the failure of your email program to connect to port 25, the SMTP (outgoing mail) port. One of the following is the likely cause of this problem: Your firewall blocks SMTP connections to an internet mail server.
Why is my mail going to outbox and not sending?
When a message gets stuck in your Outbox, the most likely cause is a large attachment. Click SEND/RECEIVE > Work Offline.
Where is SMTP configuration in Linux?
You can find the main configuration for Postfix Linux mail server in the /etc/postfix/main.cf file.