Is the email from dellteam.com genuine/authorized?

It's almost certainly fake -- if it were from Dell, they'd have the service tag.

If you want an extended warranty, call Dell for a quote on one.  However, note that buying an extended warranty on a system you already have is rarely a good value for the dollar - what costs $100 or so at purchase will cost you 3-4 times that as an extension.  You're essentially paying in advance for a major repair - you're better off banking the funds if a repair is needed.

DellTeam.com is CERTAINLY a Dell e-mail domain.

Not fake. 

Anytime you call Dell support, they identify your computer by asking for your Service Tag (serial number) or Express Service Code.  So, that's normal. 

If you every want to find out who owns a domain, it's really quite easy --

If you do a WHOIS lookup for dellteam.com you will see:

Name

Dell Domain Administrative Contact

Organization

Address

1 Dell Way

Address

RR1-33

City

Round Rock

State / Province

Texas

Postal Code

78682

Country

US

Phone

+1.5127283500

Fax

+1.5122833369

Email

Sometimes, however, a domain owner will deliberately make their information private for purposes of  anonymity.  However, that was not done in this case (and generally is not done by large and legit companies) and it's EVIDENT (you can do a WHOIS lookup yourself)  that Dell owns this domain. 

I just received a suspicious call from "Dell".

They knew when I bought my new Aurora R7, and for how much, and told me that they were calling because I'd earned enough Rewards points to extend my warranty one extra year from those points alone.

I remember the hair rising on the back of my neck when they asked for an "audible yes". 

Was this a scam? Should I be on the lookout? Would love some guidance here.

I too faced this issue of getting a mail from @dellteam, today 

Found another one.  Extend your warranty from  US@ecampaigns.dell.com

I got one of these and was uncertain so I sent an email to a Dell account manager that I have worked with previously, asking about it..

,

It is a legitimate email.  I verified his contact info in our corporate directory and I called him.

We use @dellteam for new hires that are going thru training and for contractors that we hire to assist us.

Nick handles after point of sales warranties.

Thanks again for checking,

• Greg Cary
• Dell EMC Account Manager
• Medium Business Public
• gregory.cary@dell.com
• Office Hours: M-F  9:00 AM – 5:00 PM Central Standard Time

---------- Forwarded message ---------
From: <Nick.Qualley@dellteam.com>
Date: Thu, Nov 29, 2018 at 3:32 PM
Subject: Dell Warranty
To: me

 We noticed you recently ordered Dell units with Basic next day service, which only covers hardware failures during business hours/business days. Currently we have a promotion that will allow you to upgrade your service to Prosupport or Prosupport Plus near the point of sale price. Keep in mind that you can take advantage of our Flex billing plan which allows you to break down the cost of your warranty renewals into low monthly payments. Also, we are now able to provide warranty service on Non Dell Equipment’s (HP, IBM, CISCO, NETAPP, BROCADE, ORACLE, FUJITSU, HITACHI, etc). Please let me know if you have any, and if they are close to expiring (you will notice that our prices are very competitive).

 Happy Holidays,

• Nick Qualley
• Renewals Rep
• Dell EMC | APOS | GCCS / Enterprise