Bug: /messages call fails with error from etherscan (endpoint has changed)

[tboeckmann]

Describe the bug
When I call the messages endpoint, I receive an error:
Endpoint:

http://127.0.0.1:8080/api/messages?protocol=ethereum&network=mainnet&address=0x92d8f10248c6a3953cc3692a894655ad05d61efb`

Error:

{"code":500,"message":"Get https://etherscan.io/api?action=txlist\u0026address=0x92D8f10248C6a3953CC3692A894655ad05D61Efb\u0026endblock=99999999\u0026module=account\u0026sort=desc\u0026startblock=0: auto redirect is disabled"}

Then, when calling the etherscan url (replacing \u0026 with &):

https://etherscan.io/api?action=txlist&address=0x92D8f10248C6a3953CC3692A894655ad05D61Efb&endblock=99999999&module=account&sort=desc&startblock=0

returns error:

{"status":"0","message":"NOTOK","result":"Invalid API URL endpoint, use api.etherscan.io"}

To Reproduce
Steps to reproduce the behavior:

1. Configure Mailchain with at least one Ethereum address
2. Go to 'https://inbox.mailchain.xyz/#/'
3. Inspect the developer console
4. See failed message endpoint call
5. See error

What version of Mailchain are you using ?
$ mailchain version
Version: v0.0.60

Expected behavior
It should fetch messages

Additional context
Add any other context about the problem here.

[robdefeo]

closed by #639