How do I fix SMTP error in Gmail?

Enable ‘Less secure apps’ within GMAIL

Log into your GMAIL account.
Navigate to the ‘Less secure apps’ page.
Toggle to turn this feature ‘ON’.
Wait at least 1 hour for Google to update this setting.
Test your mail application again. It should now send correctly via SMTP.

Why is my Gmail saying offline?

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Why are all my SMTP servers offline?

Usually, the SMTP server offline issue indicates that your Outgoing Server account settings are wrong. If you have changed your SMTP server password and forgotten to update it on the Mail app, then there is a chance for this issue to occur.

How do I fix a SMTP error?

How to fix issues with sending email (SMTP)

Open the settings for your email in the application or device you are using.
Locate the outgoing SMTP server and its settings.
Check the current outgoing port and change it to 26 or 587.
Make sure any username and password fields are filled in if shown.
Save changes and test.

How do I get my Gmail online?

Open Gmail from…

Any web browser—Go to mail.google.com.
Most Google pages—In the upper right, click the App Launcher. and choose Gmail.
Android devices—Install and open the Android app.
Apple iOS devices—Install and open the iOS app.

What is the SMTP port number for Gmail?

Step 2: Change SMTP & other settings in your email client

Incoming Mail (IMAP) Server	imap.gmail.com Requires SSL: Yes Port: 993
Outgoing Mail (SMTP) Server	smtp.gmail.com Requires SSL: Yes Requires TLS: Yes (if available) Requires Authentication: Yes Port for SSL: 465 Port for TLS/STARTTLS: 587

Why is my SMTP server offline in Apple Mail?

If you see the text “Offline” next to an account in the in the Outgoing Mail Server (SMTP) box, that indicates your SMTP server account settings are wrong. You may have changed the password and forgotten to update the outgoing SMTP server password when you updated the incoming email account’s password, for example.

Why is my SMTP server not sending emails?

Check whether there is network access from CSO to the SMTP server. Check whether the firewall is blocking SMTP traffic to SMTP server or whether the ports are blocked. If the server settings and authentication settings are correct, check whether the firewall is blocking port 587 and 465 and SMTP traffic.