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My employer provides hosted software solution for several hundred customers.
These customers often send email from these hosted applications.
Here is the problem:
Some receiving SMTP servers reject mail being relayed from our domain because the sender's address does not match our domain.
I'm looking for way to rename the sender's address to reflect our domain. Furthermore, I need to rename the sender's address so that the recipient can decipher the actual sender's email address.
Where host.example.com and customer.example.com are unrelated. You might
consider setting up SPF records for customer.example.com showing your
internal.host.example.com as an allowed sender. That gets you an SPF
PASS value at Yahoo and others. Then generate DKIM keys and sign the
outgoing message with the key for customer.example.com. Yes, you need to
generate keys for every customer, but that is easily scripted.
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clawes wrote:
> Some receiving SMTP servers reject mail being relayed from our domain because the sender's address does not
> match our domain.
Seriously?
What kind of fubar'ed setup do those "servers" use?
Dont' they have problems with other "hosted" solutions?
This isn't about SPF or DKIM or something like that, is it?
--
Note: please read the netiquette before posting. I will almost never
reply to top-postings which include a full copy of the previous
article(s) at the end because it's annoying, shows that the poster
is too lazy to trim his article, and it's wasting the time of all readers.