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.

Par ailleurs, Can’t connect to outgoing SMTP email server?

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.

Et, How do I fix SMTP failed to connect to server?

How to fix SMTP Error: Failed to connect to server

  1. Modify the firewall rules on the server to allow outbound connections on ports like 465.
  2. Modify the SMTP restrictions on the server. …
  3. Edit PHPMailer settings like Host, Port etc.
  4. Correct DNS resolution for mail server.

de plus, How do I check my SMTP server settings?

Click the « Servers » tab at the top of the Account Properties window. The fields under the « Outgoing SMTP Server » heading contain your SMTP server settings.

How do I troubleshoot SMTP problems?


  1. Check the SMTP server settings. SMTP server address—Check the host name or network address of the SMTP e-mail server. …
  2. Check the SMTP authentication settings. Check whether the e-mail server requires authentication. …
  3. Test SMTP settings by sending a test e-mail. If you are unable to send a test e-mail:

Why are my emails not sending and going to outbox?

Emails might get stuck in your Outbox for a number of reasons. Perhaps, you opened and closed the email while it was in your Outbox, instead of opening and then sending it. … To send the email, double-click it, and click Send. An email can also get stuck in the Outbox if it has a very large attachment.

What does SMTP server error mean?

An SMTP response code is a three digit code that the servers use to communicate throughout the email sending process. … If there is a communication error, you will receive an SMTP error code — a message that indicates the specific problem; like the end of server communication which is error code 550 (The request failed).

Can’t connect to Javamail SMTP host?

MailConnectException: Couldn’t connect to host, port: There can be multiple reasons for this but the most common reason for this error is the port, that you are using to send SMTP mails. Few ISPs/hosting providers block SMTP outgoing port 25. If that the case, try changing the port to 587 or 2525.

How do I fix SMTP Error 554?

How to fix SMTP Error 554

  1. Check your server’s IP for any possible blacklisting.
  2. If not blacklisted, request your IP be whitelisted by the receiving server.

How do I find my SMTP server outlook?

In Outlook, click File. Then navigate to Account Settings > Account Settings. On the Email tab, double-click on the account you want to connect to HubSpot. Below Server Information, you can find your incoming mail server (IMAP) and outgoing mail server (SMTP) names.

What is my SMTP server address?

You can generally find your SMTP server address in the account or settings section of your mail client.) When you send an email, the SMTP server processes your email, decides which server to send the message to, and relays the message to that server.

What is Bell SMTP server settings?

Outgoing mail server (SMTP)

Port 465
Secured (SSL required) Yes (Select STARTTLS or TLS if available. If not, select SSL.)

Can receive email but Cannot send?

If you can receive emails but can not send emails this usually means the authenication required by the outgoing (SMTP) server is not configured. If you can’t send or receive emails the chances are your IP address has been auto banned, please go to this article instead.

How do you check SMTP server is working?

To test the SMTP service, follow these steps:

  1. On a client computer running Windows Server or Windows 10 (with telnet client installed), type. Telnet at a command prompt, and then press ENTER.
  2. At the telnet prompt, type set LocalEcho, press ENTER, and then type open <machinename> 25, and then press ENTER.

Why are my emails not sending Outlook?

Sometimes, one of Outlook’s add-ins will crash and prevent your email messages from sending. To disable all add-ins, you can start Outlook in safe mode. If you can send email while Outlook is in safe mode, creating a new Outlook email profile should allow you to send email again.

How do I fix Outlook not sending emails?

If you’re having trouble sending messages in, try these solutions.

  1. Your inbox is full. …
  2. Check the “To” address line. …
  3. You’ve exceeded the daily message limit. …
  4. Increase your message sending limits. …
  5. You have too many connected accounts. …
  6. Verify your account. …
  7. Your account might be blocked.

Can receive but not send emails?

If you can receive emails but can not send emails this usually means the authenication required by the outgoing (SMTP) server is not configured. If you can’t send or receive emails the chances are your IP address has been auto banned, please go to this article instead.

Why does my email keep saying error?

This is typically due to a mistyped password, but it can also be caused by an incorrect username, connecting to the wrong server, or blacklisting. Follow these steps to resolve the issue: Reset your email password.

What is SMTP server address?

An SMTP server will have an address (or addresses) that can be set by the mail client or application that you are using, and is generally formatted as (For example, Gmail’s SMTP server address is, and Twilio SendGrid’s is

What is mail SMTP Starttls enable?

smtp. starttls. enable, to « true ». When set, if the server supports the STARTTLS command, it will be used after making the connection and before sending any login information. — Secure protocols.

What’s the meaning of SMTP?

What Is Simple Mail Transfer Protocol (SMTP)? SMTP is used to send and receive email. It is sometimes paired with IMAP or POP3 (for example, by a user-level application), which handles the retrieval of messages, while SMTP primarily sends messages to a server for forwarding.

What is JavaMail API?

The JavaMail is an API that is used to compose, write and read electronic messages (emails). The JavaMail API provides protocol-independent and plateform-independent framework for sending and receiving mails.

What is 554 rejecting banned content? #554 rejecting banned content ##

This means the spamcontrol server has identified part of the message as containing spam. Many times the spam content is not visible and can indicate the sender’s computer has an infection of some kind.

What port does SMTP use?

When an email client or outgoing server is submitting an email to be routed by a proper mail server, it should always use SMTP port 587 as the default port. This port, coupled with TLS encryption, will ensure that email is submitted securely and following the guidelines set out by the IETF.

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