Client-Facing

Filtering you can bill for, and a quarantine you never have to read

Clients rarely pay for security they cannot see, which makes spam the exception: the benefit arrives in their inbox every morning and needs no explaining.

See Mail Filtering plans More in Buying Guides

Straight answer first

Put MX-level filtering in front of your clients' mailboxes and put it on your price list. Our Mail Filtering add-on cleans the stream before it reaches the mailbox, with a quarantine the client can work themselves, which is what turns a security feature into a recurring line rather than a support burden.

Below: why this belongs on the price list, what MX-level changes operationally, how to keep the quarantine off your desk, and how to add a domain whose mail lives somewhere else entirely.

Written by the Hosting Seller staff · Checked 4 August 2026

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Where the filter sits determines what it can do. An MX-level service judges mail before accepting it and can refuse it outright; a mailbox filter can only tidy up what has already been let in.

For a reseller that distinction has a commercial edge. A filter the client can see working is one of the very few security products they will renew without being persuaded, and it is sold to a domain rather than to a website, which means it fits clients whose hosting is not even yours.

Why this belongs on your price list

Most security work is invisible, and invisible work is hard to bill for. Filtering is the opposite: the client notices on day one, and they notice again every morning after that.

It also sells to a domain rather than to a hosting account. A client whose website is somewhere you do not control can still buy filtering from you, which makes it one of the few products that grows your revenue without growing your platform.

And it reduces your own workload. A phishing message that never arrives is a conversation you never have, which on a book of small business clients is a meaningful number of hours a year.

What MX-level changes operationally

The filter stands in front of everything. Mail routes through it first, and obvious junk is refused before it touches the mailbox server at all.

That is a change in where the work happens. The spam folder stops being the front line and becomes the bin for edge cases, and the volume reaching your clients' storage drops accordingly.

Outbound scanning is the other half worth having on a reseller shelf, because a compromised client account that starts sending is the fastest way to damage delivery for everybody on the platform.

A quarantine the client works, not you

A good service quarantines anything uncertain rather than deleting it. The client skims a digest, releases what was wrongly held, and those releases train the filter.

Set it up so the digest goes to them and not to you. The failure mode of this product for a reseller is becoming the person who checks fifty quarantines every morning, and that is entirely avoidable at configuration time.

Strictness is adjustable, so the trade-off between catching junk and holding legitimate mail stays a decision rather than an accident. Set it once with the client, then leave it alone.

Adding a domain whose mail lives elsewhere

The plan for this is Mail Filtering. It is bought per domain, priced flat, and it does not care where the mailboxes actually are.

The work is a DNS change: point the MX records at the filter, tell the filter where to deliver, and check that the destination server will accept mail from it. Do it at a quiet hour and keep the old records to hand.

The renewal price matches the order price, which is what lets you put filtering on a published price list beside hosting rather than quoting it fresh each time.

The add-on we would rather you sold

We would rather you sold filtering than fielded phishing calls. A reseller whose clients keep getting caught spends the margin on the account in support hours, and neither of us gains from that.

Mailboxes on your own domain are part of the plan, never an add-on sold back to you at checkout.

Sold per domain, wherever the mailboxes live
Quarantine digests that go to the client, not to you
Outbound scanning to protect shared delivery
The renewal price is the price you quoted

Why Hosting Seller

On every plan, as standard

The plan behind this page

Mail Filtering sits in front of any mailbox, bought per domain at a flat price, wherever the mail is actually hosted.

Revenue without platform

It sells to clients whose hosting is not yours, which makes it one of the few lines that grows the book without growing the shelf.

A quarantine they run

Digests go to the client, who releases what was held. Configured properly, this product never lands on your morning.

Outbound scanning too

A compromised client account that starts sending is the fastest way to damage delivery for everybody, and scanning catches it early.

A supplier you can name

IGI Security Services Ltd, registered in England and Wales, with terms published under English law.

Margin that survives renewal

The order price is the renewal price, so filtering can sit on a published price list beside your hosting.

First Steps

From choosing to live

1
Put it on the price list, not in the pitch
Filtering renews without persuasion because the benefit is visible daily. Price it as a standing line per domain rather than as a project.
2
Send the digest to the client
Configure the quarantine so releases are theirs to make. Otherwise you inherit fifty inboxes to check every morning and the margin disappears.
3
Change the MX records at a quiet hour
Point MX at the filter, tell the filter where to deliver, confirm the destination accepts mail from it, and keep the old records to hand.

In the Box

Packed with every plan

Filtering in front of any mailbox, wherever it is hosted
Quarantine digests delivered to the client, not to you
Outbound scanning to protect shared sending reputation
Spam and virus filtering fitted to every mailbox on hosting plans
DNS records managed from the panel, per client domain
Adjustable strictness, set once with the client
Free SSL on every site you host, reissued before it lapses
Nothing added at setup, no joining fee ever
Real people on the counter, every hour of every day
The renewal price on the tag matches the order price

Across the Counter

Things people ask us all the time

Why is filtering easier to sell than other security work?

Because the client can see it working. Most security spending is invisible and has to be justified annually; a filter proves itself in the inbox every morning, which is why it renews without a conversation.

Can I sell filtering to a client whose hosting is not mine?

Yes, and that is much of the point. It is bought per domain and it does not care where the mailboxes live, so it grows your recurring revenue without needing the client's website to move first.

How do I stop the quarantine becoming my job?

Configure digests to go to the client rather than to your desk. They skim, release what was wrongly held, and those releases train the filter. Done the other way round, you inherit an inbox review for every domain you sell.

What does switching a domain over actually involve?

A DNS change. Point the MX records at the filter, tell the filter where to deliver, and confirm the destination server accepts mail from it. Do it at a quiet hour, keep the previous records to hand, and watch the first delivery before you close the ticket.

Moving your site to another host? Start with this checklist.

A step-by-step order of work for a move your visitors never spot: which files to copy first, how to carry email across without losing one message, the right moment to repoint DNS, and the two mistakes behind nearly every hour of downtime people ring us about.

Add a line the client renews without asking.

Filtering in front of any mailbox, bought per domain, priced flat, with quarantine digests that go to the client.

See Mail Filtering plans