Why you must not send campaigns from your normal mailbox
Almost everybody tries it once. Four hundred addresses in the blind copy field,
something friendly, send. It usually half works, which is the worst outcome: nothing
tells you about the half that did not.
Your provider will stop you
Mailboxes are built for conversations, so providers cap how much one can send. Push
past the cap and the rest of the batch is refused, or the account is paused while
somebody decides whether it has been broken into. That pause takes your ordinary mail
with it, in the middle of a work day, for a newsletter.
Everything you send rides on one reputation
Receiving systems keep a running judgement of your domain, and it has no separate
compartment for marketing. A campaign that draws complaints, or lands on a pile of dead
addresses, drags down the score your quotes and appointment confirmations are measured
against. That is the expensive part, and it is invisible for weeks. Nobody tells you an
estimate went to a junk folder. The customer just does not call back.
Why your business email goes to
spam covers what they look at.
There is no unsubscribe in a mailbox
United States rules for commercial email ask for a working way to opt out, a real
postal address in the message, and a subject line that matches what is inside. Your
mailbox provides none of it. When somebody replies asking to be taken off you are
keeping a removal list in your head, and the day you forget one is the day you get
reported.
That is a description of the requirement, not legal advice. If you are
unsure what applies to you, ask somebody qualified to say.
You cannot see what happened
Send four hundred from a mailbox and you learn nothing. A campaign tool tells you
which addresses no longer exist, who marked it as spam and who left. Keep mailing dead
addresses and you start to look like the sender filters are built to catch.