SMTP Relay Not Functioning

June 22, 2017 890 views
Email DNS CentOS
blackoutro2006
By:
blackoutro2006

Greetings,

I have been using SMTP to send emails for my XenForo message board for around one year. Everything has worked perfect until now. Perhaps it is to do with the issue in my last thread, in which I encountered DNS issues.

After my question was answered, I went ahead and adjusted all my DNS records to read as follows:

 A   blackout-ro.net                  directs to 162.243.129.112         3600 (TTL)
NS   blackout-ro.net.blackout-ro.net  directs to ns1.digitalocean.com.   3600 (TTL)
NS   blackout-ro.net.blackout-ro.net  directs to ns2.digitalocean.com.   3600 (TTL)
NS   blackout-ro.net.blackout-ro.net  directs to ns2.digitalocean.com.   3600 (TTL)

Now it seems my SMTP Relay no longer works. For the record, I am with SendGrid.net, and have never encountered an issue. I have the necessary ports open and have not changed my account information there.

Thank you

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1 Answer
hansen June 23, 2017

Hi @blackoutro2006
Where does it fail? Are you using Postfix/Exim to relay? Have you checked the logs? Are there any errors/logs in SendGrid?
As far as I can remember, you need to setup SPF (and maybe DKIM) on your DNS to allow SendGrid to send mail on your behalf. Did you copy those records over, when you moved to DigitalOcean's name servers?

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