API Management : I cannot send a custom Host header to native web service

[eessaouira (john mayer)]

Im trying to add multiple custom headers using a new policy (Policies -> Routing -> Custom Http Header) like :

Host: toto.com
header1: val1
Header2: val2

but the invoked call is not working as expected, but when i saw the tracer i found that the added Header in the Request headers to native service call is

header1: val1
Header2: val2

So the Host header is dropped from request, Is there any reason why API Gateway is dropping the Host Header ?
Thak you.

[Prabaa (Prabavathy Arumugam)]

Hi John,
I tried to simulate similar test and I can see all 3 headers are appearing in Tracer. Can you please check again and if you are still seeing the issue please share your API.

Regards.

[eessaouira (john mayer)]

Hello Prabavathy,
Thank’s for your help, did try also override Host Headers ?
Regard,

[eessaouira (john mayer)]

I have always the same issue :
Edit mode :

As you see here in the tracer, i find just two headers instead of 3 :