On 4/12/16 1:17 PM, Mark Keymer wrote:
We recently setup our first customer using the encryption aspect with
Reflexion. And for the end-user they have been dealing with bounce backs
from recipients e-mail accounts not liking the e-mail that Reflexion
sends that basically tells the recipients to use a link to go and look
at the encrypted mail.
So I reached out to Reflexion about the issues trying to see if maybe
the template used to notify the recipients could be changed. For example
when sending to
optimum.net you get "smtp; 554 5.7.1 Spam detected by content scanner.
Message rejected." Maybe it is the URL, wording in the e-mail, or
something else.
Do optimum.net users have the ability to whitelist senders? If so this
might be an option.
At any rate I thought that as Reflexion is who is really sending the
e-mail that they would have a team to reach out to ISP/Email hosters
etc, to work on trying to see about getting those e-mails whitelisted.
How is this being used? If the mail is being sent to those who expect
it, that's one thing.
If not, then I see two potential problems to this scaling well at all,
regardless of whether the receiving ISP filters it. As DMARC becomes
more widespread, this would require that the sender address of the
Reflexion mail be different from the actual originator.
It also sounds like the recipient is in all cases being asked to click
on a link in email which is likely to be from an unknown sender (to
avoid DMARC issues). This is a potential malware vector.
It might be useful for certain specialized applications but it doesn't
look particularly scalable for general use.
--
Jay Hennigan - CCIE #7880 - Network Engineering - j...@impulse.net
Impulse Internet Service - http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV
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