Closure of port 25 | How to modify the port in Android

Closure of port 25 | How to modify the port in Android

Due to a security update, port 25 has been disabled for sending emails.

Additionally, the authentication system has been unified, so it is now necessary to use a normal password along with a secure connection.

New required configuration
For email sending to work correctly on Android, you must configure:
  1. SMTP Port: 587 or 465
  2. Security: STARTTLS (587) or SSL/TLS (465)
  3. Authentication: enabled
  4. Password: normal (not manually encrypted)
How to change the outgoing port on Android
  1. Open the email app
  2. Go to Settings > select your account
  3. Access Outgoing server (SMTP)
  4. Modify:
    1. Port: 587
    2. Security: STARTTLS or TLS
    3. Authentication: enabled
  5. Save the changes
Common issues
  1. If you cannot send emails, check that port 25 is not configured and that Android saves the changes correctly.
  2. Verify that SMTP authentication is enabled
  3. Make sure you are using the correct password (without old encryption settings)

For any questions, you can contact us.

    • Related Articles

    • Closure of port 25 and changes in email authentication

      Important: If your email client is still using port 25 for sending emails or has outdated authentication settings, email sending may stop working. What should you do? You should review your email client settings and update: the outgoing port (SMTP), ...

    • Closure of port 25 | How to modify the port in Mail de Mac

      Due to a security update, port 25 has been disabled for sending emails. Additionally, the authentication system has been unified, so it is now necessary to use a normal password along with a secure connection. New required configuration For email ...

    • Closure of port 25 | How to modify the port in iPhone

      Due to a security update, port 25 has been disabled for sending emails. Additionally, the authentication system has been unified, so it is now necessary to use a normal password along with a secure connection. New required configuration For email ...

    • Closure of port 25 | How to modify the port in Outlook

      Due to a security update, port 25 has been disabled for sending emails. Additionally, the authentication system has been unified, so it is now necessary to use a normal password along with a secure connection. New required configuration For email ...

    • How to modify Sogo features

      From the SOGo panel, you can customize different aspects of your account: language, time zone, email display, labels, folder synchronization, and IMAP settings. Below, we explain how to access these settings and which options you can modify. The ...