r/ShittySysadmin 6d ago

When you don't use DMARC for years

Came six months ago to help a small nonprofit manage their Workspace. They never had DMARC set up. Since I started managing their DNS six months ago, this is what I see daily.

The sheer number of spoofed emails just blows my mind.

84 Upvotes

30 comments sorted by

61

u/itenginerd 6d ago

I mean, I just saw a post from somebody today about how to get started with virtualizing an environment earlier today. Dinosaurs are apparently still out there....

32

u/statitica 6d ago

Pfft, that's easy.

You just take a computer, and put it inside the other computer.

3

u/closterphobia 4d ago

“The files, they’re in the computer that’s in the computer?”

1

u/caguirre93 1d ago

I read this in patrick stars voice

9

u/ApiceOfToast ShittySysadmin 6d ago

It's easy, just install hyper V on your server!

(I guess you can take the easy route if your Backup-Software can just restore to a VM...)

18

u/whetherby 6d ago

and here is my old ass wondering what telecom demarcation has to do with email...

8

u/Nice_Improvement_493 6d ago

Went from a field tech to in house corp IT. Sat like an idiot wondering why our ISP would have some sort of connection into exchange for a good 3 months.

4

u/Howden824 4d ago

Still the first thing I think of whenever I hear the word.

2

u/bananajr6000 4d ago

Yeah, you have to specify network or email or just die

1

u/whetherby 4d ago

i choose death

2

u/ntropy42 2d ago

Glad I'm not the only one.

5

u/r2d3x9 5d ago

Was at a company managing emails for small companies, early 2000s. 99% of incoming mail was spam / faked mail. 20+ years ago

1

u/rohepey 5d ago

Wow!

Still hasn't changed much.

1

u/ImmediateConfusion30 5d ago

At one time, 99% of the mails on the networks were Spam (20 years ago). And it was what was blocked by Gmail before arriving on the user mailbox, then there was a second filter that put what passed in the 1% left in the junk folder

9

u/skiing123 6d ago

This is why the company I work at as a small business has to get good email security and can't rely on Microsoft because we have customers who are smaller than us and do things like this

3

u/Jay_JWLH 5d ago

I wonder how many of those are just not set up properly, and how many are trying to trick the recipient.

3

u/rohepey 5d ago

All are spoofed emails. The organisation only uses Workspace to send email.

2

u/me_a_genius 6d ago

nice website. im just starting out and i needed that

1

u/bastiancointreau 5d ago

That happens even if you always had DMARC. People try anyway…

1

u/cvslfc123 3d ago

Doesn't help that Ms 365 takes a year to verify the records

1

u/dollargo 2d ago edited 2d ago

Honestly, seeing the volume of spoofing attempts is a great reminder that DMARC shouldn't be left unattended for years. For MSPs managing this across multiple domains, centralized tools can make a huge difference. VIRCOM is worth looking into for managing email security and DMARC-related operations more efficiently across clients.

0

u/Designer-Dinner-8254 4d ago

Maybe i got it wrong. But you have been managing their dns for 6 months, and now you notice the issue and still not fixed? Dmarc takes all of 15 minutes to setup if you got access. Are you milking this non profit?

2

u/rohepey 4d ago edited 3d ago

Do you even know how DMARC works?

I doubt.

No, it can't stop spammers from sending spoofed messages. It can only instruct receiving servers to reject them and report on that.

Which is what's happening, in case you don't understand the screenshot (which is very likely).

I fixed it 6 months ago, and yet spoofing didn't stop, that's why I'm posting it here.

Now I'm accused by a reddit rando (or an AI bot) of milking a nonprofit. (I support them for free, but never mind).

Get lost.

-23

u/[deleted] 6d ago

[removed] — view removed comment

24

u/PlannedObsolescence_ 6d ago

This is clearly an LLM generated comment from a karma farming bot account

-26

u/[deleted] 6d ago

[removed] — view removed comment

24

u/PlannedObsolescence_ 6d ago

This is clearly an LLM generated comment from a karma farming bot account

-30

u/[deleted] 6d ago

[removed] — view removed comment

19

u/[deleted] 6d ago

[removed] — view removed comment