Composing a new message causes an authentication window to appear

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Problem:

Composing a new message causes an authentication window to appear

Solution:

This comes up because the user's signature consists of an image that isn't publicly accessible.

To fix this, first set the zimbraPublicHostname to a publicly accessible hostname :

zmprov md example.com zimbraPublicServiceHostname mail.example.com

And then check the user's signature for any image that is accessed by an internal hostname :

zmprov gsig user@castlebranch.com

If there is one, reattach the image so that the new value of zimbraPublicServiceHostname is picked up.

Submitted by: Shashank Tewari

<stewari@zimbra.com>