My hosting failed to send email from gmail

I had contacted Digital Ocean about my gmail server. They said I must add the record on the domain side.

I had add SPF google and the domain IP is my server IP.

But I failed to send the gmail from my hosting server.

"v=spf1 ip4: -all"

I’m using nodeJS to test email function:

var transporter = nodemailer.createTransport({
				host: '',
			  port: 587,
			  secure: false, // secure:true for port 465, secure:false for port 587
			  auth: {
					user: mConfig.sender_email, // Your email id
					pass: mConfig.sender_password // Your password

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The SPF record looks correct. Also you need to make sure that port 587 is open on your droplet for outgoing TCP connections. If you are using UFW you could do that with this command:

ufw allow out 587/tcp

If this is still not working, can you share the error that you are getting here?

Regards, Bobby