Deliverability

Sending email when the platforms say no

Peptide and supplement brands get flagged the moment they sign up. Here is what keeps the email landing anyway.

4 min read · October 2026
All field notes

If you sell peptides, supplements or research compounds, you already know the drill. You build a list, you load it into one of the mainstream platforms, and a week later the account is frozen with a line about prohibited products. The list is stuck inside, the flows stop, and the revenue that email was quietly making disappears overnight.

The problem is not your copy. It is the category. The big senders share their sending infrastructure across millions of accounts, so anything that looks like a compliance risk to them is a risk to everyone else on those servers. The cheapest move they have is to turn you away before you ever send.

Own the pipe

The fix is to stop renting space on infrastructure that was never built for you. TellySend puts each brand on its own sending domain, separate from your main website, so your reputation is yours alone and nobody else's behavior can take you down with them. No shared pool, no sudden ban for being in the wrong category.

Warm it up, do not blast it

A brand new domain has no reputation, good or bad. Send ten thousand emails on day one and the inbox providers treat it like a spammer who just woke up. We ramp a new domain slowly, starting small and sending first to the people most likely to open, so the mailbox providers learn the domain is wanted before the volume climbs.

It is slower than hitting send on everything at once. It is also the difference between an audience you can mail for years and one more frozen account.

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