Email with external links go to junk mail

Using CRM 2022R2 and Office365.  Have setup email templates for employees to use when sending emails.  Started having all emails being received as junk or not being received at all.  Emails were being classified as junk by recipient email servers.

After investigating, we found that our email templates were using HTML format so that we could add our logo to the emails.  When we deleted all the external link items like our logo, our emails would NOT be flagged as junk/spam.  If we put the logo back in, emails were classed as junk/spam.  This is an issue as other companies are able to send logos and other external links in their email.  Why can we not do the same in CRM?

Why is this?  Is there a setting in Office365 to allow this?

Anyone find a way around this?

TIA

Terry