CODEWITHSUNDEEP
emailspfdkimblacklistdmarc
Bevilacqua
Bevilacqua

Reputation: 475

Unable to send Emails to university email addresses

I use dnsimple to host my DNS and have valid SPF, DKIM, and DMARC records to validate my emails sent from Zoho. However, Whenever I send emails to an @ucdavis.edu account I get an Undelivered Mail response

This message was created automatically by mail delivery software. 
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. 

[email protected], ERROR_CODE :550, ERROR_CODE :5.7.1 <[email protected]>... Access denied 



Received:from mail.zoho.com by mx.zohomail.com 
    with SMTP id 1478675695600485.6815385213283; Tue, 8 Nov 2016 23:14:55 -0800 (PST) 
Message-ID:<[email protected]> 
Date:Tue, 08 Nov 2016 23:14:55 -0800 
From:Jacob Bevilacqua <[email protected]> 
User-Agent:Zoho Mail 
To:"lsmiyashita" <[email protected]> 
Subject:Here's a little test for you. 
Content-Type:multipart/alternative; 
    boundary="----=_Part_335760_1020694757.1478675695597"

I have tried several different hosts (GSuite, MailGun, & Zoho) and I get the same issue. I checked and I am not blacklisted on any sites. I ran a test at mail-tester.com and got a 10/10. Why won't my messages deliver.

Upvotes: 0

Views: 161

Answers (2)

Henry
Henry

Reputation: 3013

I verified that the email address you are sending to is valid: Verified Email Address

So like @Synchro says, they just don't like you. It's always a challenge to figure out the exact reason, but contacting their admins is the right way to go. I have a feeling it's because of the .space domain ending, they probably haven't updated the list of domain endings they accept.

Anyway, if you wanted to do additional mail testing, use this Mail Tester.

Upvotes: 2

Synchro
Synchro

Reputation: 37810

You are under the unfortunate illusion that it's your fault. A 5.7.1 error means that they just don't like you, and they don't have to give a reason. Welcome to the world of deliverability, or lack thereof. Well-behaved mailers are often punished for no particular reason. If it's just this domain, your best bet might be to contact their admins.

Upvotes: 1

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