Hi Gordon,

I have traced this issue and found what needs to be done.

In webmail/imp/config/hooks.php, there is this function which is disabled/commented out by default:

// if (!function_exists('_imp_hook_vinfo')) {
// function _imp_hook_vinfo($type = 'username')
// {
// $vdomain = getenv('HTTP_HOST');
// $vdomain = preg_replace('|^mail\.|i', '', $vdomain);
// $vdomain = String::lower($vdomain);
//
// if ($type == 'username') {
// return preg_replace('|\.|', '_', $_SESSION['imp']['user'] . '_' . $vdomain);
// } elseif ($type == 'vdomain') {
// return $vdomain;
// } else {
// return PEAR::raiseError('invalid type: ' . $type);
// }
// }
// }

If you need virtual domain users to login, using just username instead of username@domain, there are a number of things to consider.

1. If you use one virtual host for all the domains you host, then each domain will need to have a DNS A record, like webmail.DOMAIN.NAME

2. IIRC, this will require Apache to use NameVirtualHost *:PORT and ALL webmail.DOMAIN.NAME will have to point to this vhost.

This line:

$vdomain = preg_replace('|^mail\.|i', '', $vdomain);

Should then be changed to:

$vdomain = preg_replace('|^webmail\.|i', '', $vdomain);

And this line:

return preg_replace('|\.|', '_', $_SESSION['imp']['user'] . '_' . $vdomain);

Should be made to look like:

return preg_replace('|\.|', '.', $_SESSION['imp']['user'] . '@' . $vdomain);

Actually, I see that what that line does is that it replaces @ with and underscore and any dots in the domain portion with and underscore too.

Such that if I went to http://webmail.wash.or.ke (which is the root for my webmail tree) and I put in the username johndoe, then what is submitted by IMP to the IMAP server as the login name becomes johndoe_wash_or_ke. I don't know why they do this (perhaps some security issue) but I changed mine as shown, so that the login name submitted is johndoe@wash.or.ke

3. You also need to edit webmail/imp/config/conf.php line 50 and change this line:

�� �� $conf['hooks']['vinfo'] = false;

To ��$conf['hooks']['vinfo'] = true;

Someone needs to tell me the danger posed by my having��return preg_replace('|\.|', '.', $_SESSION['imp']['user'] . '@' . $vdomain);

I just did not need the replacements and to be honest I don't understand the dangers of doing this.

Someone who knows php better should tell me.

PS: I don't know if these changes affect the other groupware components. Someone should tell me:-)