External replier being asked for OUR server credentials
Posted: Mon Feb 11, 2019 2:18 pm
Hi,
We have an external sender (different domain, a business customer) replying to one of our emails but is being asked to provide login details to *our* server while composing their reply to us.
They sent a screen-shot through to illustrate they were not doing anything weird - just a regular email reply (using Outlook as edit client) with the message in background and a prompt for login to our Zimbra box on top.
The only thing I've thought of so far is maybe our company logo image in our signature (included within their reply) is being requested from our server rather than being embedded in the original message (in base64, or whatever), so is prompting for permission to retrieve it to add to the reply body? (Only a guess.)
Has anyone else come across this odd behaviour and maybe discovered an explanation for what's occurring? (Possibly also with a known solution?
)
Cheers,
Alec
We have an external sender (different domain, a business customer) replying to one of our emails but is being asked to provide login details to *our* server while composing their reply to us.
They sent a screen-shot through to illustrate they were not doing anything weird - just a regular email reply (using Outlook as edit client) with the message in background and a prompt for login to our Zimbra box on top.
The only thing I've thought of so far is maybe our company logo image in our signature (included within their reply) is being requested from our server rather than being embedded in the original message (in base64, or whatever), so is prompting for permission to retrieve it to add to the reply body? (Only a guess.)
Has anyone else come across this odd behaviour and maybe discovered an explanation for what's occurring? (Possibly also with a known solution?
)Cheers,
Alec