Skip to main content
Holy
Holy
New Member
October 4, 2016
Solved

Block Senders who have Numbers in their Email Adress

  • October 4, 2016
  • 1 reply
  • 9056 views

Hello,

 

a customer asked me if it is possible to block / deny senders which have numbers in their email adresses like (mike445@example.com) .

 

is it possible to build like a regex for that? is it possible to say if Sender has more than 2 Numbers or more than 3 numbers in his email adress?

 

Thank you very much

Best answer by Bromont_FTNT

I haven't fully tested but you could try matching the sender with this regex in DLP incoming: .*[0-9][0-9]

1 reply

emnoc
emnoc
New Member
October 4, 2016

Never heard of that, but it's NOT uncommon to have numbers in a email-address and specifically from a internet free email provider like gmail. Heck you will block a lot of emails if you actually did  this ;)

 

I wonder if you have a incoming policy with a LDAP  control to do this  tho. This might be doable let's in a organization and  address verifications for OUTBOUND but for incoming that would be strange approach? But typically  ldap is done for recipient verification and to set specific receipient  AS/AV profiles and controls from experience.

 

 

 

 

Bromont_FTNT
Staff
Bromont_FTNTAnswer
Staff
October 4, 2016

I haven't fully tested but you could try matching the sender with this regex in DLP incoming: .*[0-9][0-9]

Holy
HolyAuthor
New Member
October 4, 2016

Bromont wrote:

I haven't fully tested but you could try matching the sender with this regex in DLP incoming: .*[0-9][0-9]

 

Thank you i will try

Terms & ConditionsAccessibility statement