Drupal 6.x

We have a platform where we set up Drupal sites for fine artists (they put up own content) http://heavybubble.com.

We always had webforms for visitors contact them. At first through the contact module. When DMARC came along we changed them all to webforms set up to send the message to the artist from webmessages@heavybubble.com, an email we validated as legitimately coming from the web server, setting up all the SPF and such as suggested.

Hello!

I have a D6 SIte, which I would like to upgrade to D7, but the problem it that I have an event modul that I need and it's not supported.

I'm not clear what to do. Tips ?

Thanks!

Hello, I'm looking for someone to patch a D6 core for the  remote code execution vulnerability announced here: https://www.drupal.org/sa-core-2018-002

To update from drupal 6 to drupal 8 at once? or do I have to go thru drupal 7 first?

I have a specific requirement to give a few hundred user of a drupal 6 site a specific role 'author' before migration. These are essentially users who have contributed content. I have tried Views Bulk Operations but there are no options to add relationships to a view  of 'nodes' to manipulate user roles with VBO. With a view of users, the VBO options to add user roles become available but there is no option to filter by users who have created content.

I have drupal 6 installed on linux with mysql 5.6 and php 5.4. All working. 
But search give error: You must include at least one positive keyword with at least 3 characters. . I enter word with 5-6 characters. 

I try see logs of server and php, errors: 0. In admin panel: admin/settings/search all indexed on 100%. What this can be? I think, that drupal incorrectly checks for counting characters in search. May be need a module php? But I have installed all modules..

In database I have all tables on InnoDB.