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Email being delayed when sent from Google's mail server

Hi Experts,

In the last month or so, I have been notified of multiple emails being received a day or two after they were sent as per the time stamp on the email. Our mail server is Exchange 2007 R2.

Everyone of the delayed emails was sent via Googles mail server.

Here an NDR from one of the senders:

From: Mail Delivery Subsystem <mailer-daemon@googlemail.com>
Subject: Delivery Status Notification (Delay)
Date: September 9, 2016 at 4:11:24 PM EDT
To: sender@tigroup.ca

This is an automatically generated Delivery Status Notification

THIS IS A WARNING MESSAGE ONLY.

YOU DO NOT NEED TO RESEND YOUR MESSAGE.

Delivery to the following recipient has been delayed:

    recipient@simex.ca

Message will be retried for 1 more day(s)

Technical details of temporary failure:
read error: generic::failed_precondition: read error (0): error

----- Original message -----
I found this link which suggests it has to do with the setup of sender's SPF record but we are having this issue with multiple email domains who uses google mail servers.

Coincidentally, the only thing I change recently was my SPF record "v=spf1 mx a ip4:216.191.43.100/32 -all" so it be maybe related to this delay problem? I am not sure.

Any help would be appreciated.
0
jnsimex
Asked:
jnsimex
  • 2
1 Solution
 
Dan McFaddenSystems EngineerCommented:
Part of the issue may be that your SPF record cannot be found when doing an SPF lookup against your domain.

Reference link:  http://mxtoolbox.com/SuperTool.aspx?action=spf%3asimex.ca&run=toolpage

You can test this manually if you like:

1. open a command prompt
2. type nslookup and hit enter (you should now be at the nslookup ">" prompt
3. type set type=txt and hit enter
3a.  an SPF record is a TXT entry in your DNS zone in your DNS service
4. enter your DNS domain name.  in your case, type simex.ca and hit enter

If your SPF record is configured correctly, is should return the SPF entry.  In you domain's case, it does not return anything.  Here the output from my location:

C:\>nslookup
Default Server:  dns.example.com
Address:  1.2.3.4

>
> set type=txt
> simex.ca
Server:  dns.example.com
Address:  1.2.3.4

simex.ca
        primary name server = ns1.cadns.ca
        responsible mail addr = admin.cadns.ca
        serial  = 1
        refresh = 28800 (8 hours)
        retry   = 7200 (2 hours)
        expire  = 604800 (7 days)
        default TTL = 3600 (1 hour)
>
>
> google.com
Server:  dns.example.com
Address:  1.2.3.4

Non-authoritative answer:
google.com      text =

        "v=spf1 include:_spf.google.com ~all"
>
>

Open in new window


Can you post s screenshot of how your SPF entry is setup?

Dan
1
 
jnsimexAuthor Commented:
Hi Dan,

I had "mail" in the subdomain text box in the TXT Records portion of the DNS Zones. Once I removed "mail", it looks to be resolving properly now.

Untitled.png
Do you mind confirming?
0
 
Dan McFaddenSystems EngineerCommented:
Yeah, now I can see the SPF record resolving thru DNS.

Glad its resolved.

Dan
1
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