Hi there,
we have problems with spam from fake sender adresses like fax@domain.tld where domain.tld is our own domain and the given sender does not exist as real mailbox.
I tried to reject those mails within our exchange configuration, but gave it up.
Is there a way scrollout can do this for us?
I mean, whenever scrollout recieves a mail coming from a domain in its route-config, it could first do a "mail to". if the destination replys with "user unknown" can scrollout block this mail?
regards
Andreas
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how can i activate that?
is that the LDAP thingy under route/inbound
unfortunately scrollout is not at the same site as the destination mailservers.
i can only connect to smtp-ports of the given exchange.
don't have access to their DCs
only chance for me is to verify a user somehow in a smtp-dialogue (e.g. a 'mail to:')
or i need a feature directly on the exchange, which of cause is aware of any existing or nonexisting mailbox. but i couldnt find a solution
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It does Sender/Recipient validation against SMTP server or LDAP.
Don't confuse the Sender (Return-Path) address with the address in From field.
Implement SPF/DKIM in your DNS in order to help Scrollout detect the fake Senders/Froms.
SPF validates the Sender domain.
DKIM validates the From domain.
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Hi there,
we have problems with spam from fake sender adresses like fax@domain.tld where domain.tld is our own domain and the given sender does not exist as real mailbox.
I tried to reject those mails within our exchange configuration, but gave it up.
Is there a way scrollout can do this for us?
I mean, whenever scrollout recieves a mail coming from a domain in its route-config, it could first do a "mail to". if the destination replys with "user unknown" can scrollout block this mail?
regards
Andreas
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scrollout can do user validate in domain
do you use it?
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how can i activate that?
is that the LDAP thingy under route/inbound
unfortunately scrollout is not at the same site as the destination mailservers.
i can only connect to smtp-ports of the given exchange.
don't have access to their DCs
only chance for me is to verify a user somehow in a smtp-dialogue (e.g. a 'mail to:')
or i need a feature directly on the exchange, which of cause is aware of any existing or nonexisting mailbox. but i couldnt find a solution
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Mark all as spam, and block user from posting to "Discussion"
It does Sender/Recipient validation against SMTP server or LDAP.
Don't confuse the Sender (Return-Path) address with the address in From field.
Implement SPF/DKIM in your DNS in order to help Scrollout detect the fake Senders/Froms.
SPF validates the Sender domain.
DKIM validates the From domain.
If you look at this picture you will notice a domain with correct SPF settings.
Despite that scrollout is letting in spoof emails.
What else am I missing?
https://www.dropbox.com/s/0bgjp36hf36xzcq/Captura%20de%20pantalla%202016-07-30%2014.01.50.png?dl=0
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SPF must have -all to be strict, not ?all.
Thanks! it seems to be working :)
BTW I was wondering if CPanel email server will also refuse fake emails with this setup.