It's 2020 and people still use the To: or Cc: field to list a large amount of email addresses. Mail should protect itself from that
When displaying a message with large To: or Cc: field, this field overlaps other elements on the page:

Mail app version: master (1.5)
@jancborchardt @GretaD that is the theoretical issue we discussed about showing max one line with those avatars :)
I've fixed locally with:
.avatar-header {
max-height: 80px;
overflow-y: auto;
}
I've fixed locally with:
.avatar-header { max-height: 80px; overflow-y: auto; }Thank you, do you want to shot a PR? Or should I do it?
No problem. I’ll do it