Notification at the top of each email

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alwtech
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Joined: 16 Feb 2019 18:09

Notification at the top of each email

Post by alwtech » 20 Feb 2019 16:12

How can I make the system put a notification at the top of each email that will let them know that the email originated outside of their email server.
I am trying to combat spoofed emails that look like they are coming from other employees of the same company.

alwtech
Posts: 9
Joined: 16 Feb 2019 18:09

Re: Notification at the top of each email

Post by alwtech » 20 Feb 2019 17:03

Usually I would do this with transport rules on exchange but with this hosting provider it is not available. This is a stop gap until I get the 298 email addresses moved from this provider

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shawniverson
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Re: Notification at the top of each email

Post by shawniverson » 21 Feb 2019 10:11

MailScanner cannot prepend the body of an email, only add a footer.

Instead, why not modify the subject with [EXTERNAL], perhaps? Not sure how to go about this without a little research, but MailScanner can modify the subject line.
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ASEsysadmin
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Joined: 01 Mar 2019 17:43

Re: Notification at the top of each email

Post by ASEsysadmin » 01 Mar 2019 17:44

Why not just do this the right way and use an SPF record.

iglooo
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Joined: 25 Jan 2019 19:52

Re: Notification at the top of each email

Post by iglooo » 04 Mar 2019 15:41

ASEsysadmin wrote:
01 Mar 2019 17:44
Why not just do this the right way and use an SPF record.
SPF does nothing to prevent spoofed names

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shawniverson
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Re: Notification at the top of each email

Post by shawniverson » 09 Mar 2019 18:33

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2Old4This
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Joined: 15 May 2015 21:11

Re: Notification at the top of each email

Post by 2Old4This » 19 Mar 2019 15:25

The way I handled this with my in-house Exchange server was with a server-side rule. There were only a few employees being spoofed (one of which was the CEO) so the rule says if the email comes from outside the organization with the FROM header having certain values (names of employees) then delete the message. If you have a large number of employees to add to this rule it might get unwieldy, but I can dig up the exact rule settings if you think it would help.

As an org-wide rule, you could tweak it to say if an email originates from outside the organization add {External} to the subject, or something like that.

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