Segmented campaigns generate 760% more revenue than batch sends (DMA). SendX gives you smart segments, behavior-based tags, and unlimited custom fields — all updating automatically.
Most platforms give you basic list filters. SendX gives you a full audience intelligence layer — unlimited custom fields, behavior-based tags, and smart segments with AND/OR logic that update automatically.
Build a segment in under 2 minutes using any combination of contact data, behavior, tags, and custom fields. Segments recalculate automatically as contacts qualify in or out — no manual rebuilding, no stale lists.
Every contact holds unlimited custom fields. Store purchase history, onboarding stage, plan tier, industry, or any data point specific to your business — then use any field in segments, personalisation, or automation triggers.
Tags capture what contacts do — clicked a link, attended a webinar, purchased a product. Lists manage who they are and how they subscribed, with double opt-in to keep lists clean and compliant from day one.
Three layers work together — lists for subscription management, tags for behavioral tracking, and smart segments that combine both for precise targeting.
Upload a CSV or connect via API. Map your existing data columns to SendX custom fields — plan tier, signup source, industry, or anything else relevant to your business. Custom fields are immediately available in segments and personalisation tags.
Set automation rules to apply tags based on actions: opened an email, clicked a specific link, submitted a form, triggered a custom event. Tags accumulate over time, building a behavioral profile for every contact without any manual work.
Combine tags, custom fields, list membership, and engagement history into multi-condition segments using AND/OR logic. Send campaigns directly to any segment, or use a segment as the entry trigger for an automated workflow. Segments stay current — no manual exports needed.
Everything you need to know about SendX and our services. Last updated June 2026.
Lists are fixed groups — contacts subscribe to a list via a signup form and stay until they unsubscribe or are removed. Tags are flexible labels applied manually or by automation rules, capturing what a contact has done (clicked a link, purchased, attended a webinar). Segments are dynamic queries that pull together any contacts who currently match a set of conditions across lists, tags, custom fields, and engagement history.
A contact can be on one list, have dozens of tags, and qualify for many different segments at the same time. In SendX, all three work together: lists handle subscription and double opt-in compliance, tags track behavior over time, and smart segments combine both for precise campaign targeting.
Segmented email campaigns generate 760% more revenue than batch-and-blast sends, according to the DMA. Mailchimp's internal benchmark data found segmented campaigns produce 14.31% higher open rates and 100.95% higher click-through rates compared to non-segmented sends. The reason is straightforward: when the content matches what the subscriber actually cares about, they are more likely to open and act.
SendX smart segments make this practical at any list size. Build a segment of contacts who clicked your pricing page but have not started a trial, combine it with a tag for "interested in automation," and send a targeted campaign in minutes — without exporting or manually filtering your list.
Yes. SendX segments can filter by email engagement (opened, clicked, did not open in X days), tag history (has tag, does not have tag), custom field values, list membership, and signup date. You can combine any number of conditions using AND/OR logic — for example, "tagged as interested-in-automation AND opened any email in the last 30 days AND has not started a trial."
Segments update in real-time as contact behavior changes, so you are always working with current data. There is no scheduled sync or manual refresh required.
No. SendX does not restrict the number of tags or custom fields. You can create as many tags as your business needs, apply them via automation rules or bulk actions, and store as many custom fields per contact as your data requires. Tags, custom fields, and unlimited list creation are available on all SendX plans — there are no feature-gate restrictions based on pricing tier.
Smart segments in SendX are dynamic queries that run against your live contact database. When a contact's data changes — they click a link, receive a tag, update a custom field, or become inactive after a period of no engagement — segments recalculate automatically. There is no scheduled sync.
When you send a campaign to a segment, SendX uses segment membership at the time the campaign is launched. Contacts who qualify after the send has started are not included in that send — but they will be included the next time you send to that segment.
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