DECEMBER 2021 MACWORLD 89address that ends with icloud.com, mac.
com, or me.com, and that address doesn’t
exist, your email app and iCloud.com will
refuse to send it. Your app may not tell
you which address is incorrect, requiring
sleuthing on your part. (Invalid addresses
at other domains will be rejected by their
mail servers in the form of an email
message in reply.)
Too many recipients in one message:
It’s probably rare that you’re sending a
message to a vast number of people, but
Apple does limit your recipients to a total
of 500 per message.
Too many
recipients across
all messages:
You’re also limited
to 1,000 recipients
across a 24-hour
period and 1,000
email messages
total. Recipients
don’t have to be
unique—that is,
people will be
counted multiple
times across
different
messages.
Whether you send
10 messages each
to 100 people, 100
messages each to
10 people, or 1,000 messages to one very
exhausted person, it counts the same.
Attachment size exceeded: The text
and attachments combined of an email
message sent or received can’t exceed
the absurdly small amount of 20MB. As I
type this, I find that hard to believe in 2021,
but it’s what Apple’s documentation says.
You can enable Mail Drop (fave.
co/3w7Okjx) in Apple Mail, which uses
iCloud for temporary storage for
attachments totaling up to 5GB per
message. Mail Drop has its own set of
limits (fave.co/3EDam0n). ■Enable Mail Drop in Mail’s preferences to send large attachments.