Turn off automatic association of email attachments to contacts, companies, and deals
When you send a sales email from HubSpot or log an email using HubSpot Sales, any attachments from that email will automatically be added to theAttachmentssection of that contact's record.
HubSpot automatically associates activities logged on acontact recordto the record's associated company, and five most recently open deals, which is why those email attachments are also showing on these associated records.
This is causing an overflow of attachments that are not relevent to the contact, company, or deal records that the attachment is being associated with.
It should be possible to change this default setting within HubSpot to prevent the attachments from automatically logging to the contact, company, or deal record.