Mailerball: bulk email in soles, the competition in Peru and the risks of sending

Mailerball is a platform for sending newsletters, promotions and bulk messages by email, priced in soles and paid locally. It is one of Z-Nexus's oldest tools and we are now getting it ready to sell again, with a clear proposition: pay only for what you send.

What it does today

1. Upload your lists of contacts as CSV, with data to personalize each message.
2. Write the email in HTML, with merge fields (name, greeting…) and an editor with live preview.
3. Schedule the send, immediately or at a set time. It goes out through Amazon SES.
4. Measure: opens, clicks (with country and device) and bounces, with Excel export.

Also: bounces and complaints are processed automatically and those addresses stop receiving email; there are sub-accounts for agencies that manage several clients; you pay in soles with Mercado Pago; and it has a Libro de Reclamaciones.

Credits are prepaid, 1 credit = 1 email: packs from 25,000 to 100,000 sends starting at S/ 90, that is S/ 3.60 per 1,000 emails (IGV included), with no monthly fee and no charge per contact.

Where it stands

It is in production and migrated to Rails 8. In recent weeks we added the HTML editor with live preview, sign-in with passkeys (fingerprint or face) and installation as a phone app. A trade association uses it to watch the bounces of its own sending.

Coming next, in this order: a drag-and-drop editor with templates, signup forms that record consent, a wizard to authenticate your domain (SPF, DKIM and DMARC), one-click unsubscribe and a free plan to try it.

The competition in Peru

There is no Peruvian bulk-email platform with weight for small businesses. The market is served by foreign tools:

Prices change often: check each vendor's own page before comparing.

Advantages of bulk email

• It's your channel. An email list is yours; reach on social networks depends on an algorithm.
• It's cheap per contact reached, and measurable: you know who opened and which link they tapped.
• It works for what doesn't fit in a chat: newsletters, announcements, invitations, payment or enrollment reminders.
• It complements WhatsApp and Instagram, it doesn't replace them.

Risks you should know

• Deliverability. Gmail and Yahoo require anyone sending in volume to authenticate the domain (SPF, DKIM and DMARC), offer one-click unsubscribe and keep complaints under 0.3% (Google recommends under 0.1%). If you go over, your emails land in spam, the legitimate ones too.
• Consent. Peru's Personal Data Protection Law and its regulation (D.S. 016-2024-JUS) require express, informed consent to send advertising. Bought lists are the biggest risk, legal and reputational. Penalties can be high.
• Bounces. Insisting on addresses that don't exist damages your reputation. They must be cleaned, and Mailerball does it automatically.
• One abusive account can hurt all the others on a shared platform: that is why, before selling, we are adding limits on new accounts' first sends and automatic suspension for those that exceed the complaint threshold.
• Design and content. An all-image email, with no text version and a misleading subject, is flagged as spam for good reasons.

A simple rule: write only to those who gave you permission, let them leave with one click and send with proof.

Need to send?

Go to mailerball.com or tell us your case. If yours is accounting or condominiums, see veci and PorPartidaDoble.