An email outreach campaign for recruiting is built in this order: first you classify the legal basis for every contact (GDPR, plus Spain's LSSI e-commerce law if you recruit there), then you authenticate the domain and clean the list, and only then do you write a specific subject line and a first email under 120 words with a single question. The sequence has four sends over 14 days, each with a new fact about the role, and it stops as soon as there is a reply, an unsubscribe or a bounce. What decides whether it works is not the open rate but the qualified reply rate per segment and the meetings per 100 contacts.
What is email outreach for recruiting
Email outreach for recruiting is proactive email contact with professionals who have not applied for a role, to offer them a specific opportunity and start a conversation. It differs from email marketing because it is not after clicks or sales, but replies from specific people about a specific job.
Why email outreach still works for recruiting in 2026
Email outreach still works for recruiting because email is already a standard business channel. In Spain, the share of companies using email campaigns to drive sales rose from 66.7% to 79.7% in 2024, according to ABC. It measures sales, not hiring, but it explains why a qualified professional's inbox is full.
Demand for recruiting is growing faster than teams. El Español estimates that Spanish temp agencies could increase their need for recruiters by 6% to 8% a year, the equivalent of 1,800 to 2,400 new HR specialists.
If you want a reference for sales cadence, it is worth seeing how to optimise sales follow-ups by email and applying only what recruiting allows.
What GDPR and Spain's LSSI require before you email a candidate
Before you email a candidate you need to classify the message, because an email about a specific role and a commercial pitch from the agency do not share a legal basis. No address found in a search comes with permission attached: choosing and documenting the basis is the recruiter's responsibility.
| Type of contact | Legal basis | Required action |
|---|---|---|
| Contact about a specific hiring opportunity | Valid legal basis for that case, documented before sending | Process only necessary data and state where it came from |
| Commercial or promotional email about services | Prior consent (art. 21.1 LSSI in Spain), unless there is a prior relationship and similar services | Obtain consent or confirm the exception |
| Enriched email or phone data | Requires a valid, documented basis | Record source, date and purpose; without a basis, it is not used |
| Person who objects or unsubscribes | Immediate suppression | Stop the sequence and record the suppression |
For commercial email the line is clear. Spain's data protection authority, the Agencia Española de Protección de Datos, has found that sending a commercial email without prior, express consent breaches article 21.1 of the LSSI when there was no applicable prior contractual relationship.
A five-step protocol before building the list
- Classify the message: professional communication about a role, or commercial prospecting.
- Document the data: source, date and purpose. If you cannot say where the email came from, do not use it.
- Exclude anyone without a valid basis and anyone who has already objected.
- Identify the sender and make unsubscribing easy with a simple mechanism.
- Record bounces and suppressions, and stop the sequence on any objection.
If you are unsure whether it is recruiting or promotion, treat it as promotion. An agency looking for clients, for example by finding companies that are hiring, keeps that sales campaign separate from recruiting contacts so that a commercial "no" does not block someone who should have received a role. For how sourcing fits with GDPR, see this guide to sourcing and GDPR.
How to set up an email outreach campaign in seven steps
A recruiting email outreach campaign is set up in seven steps, and the order matters: good copy on an unauthenticated domain ends up in spam, and so does a clean domain with a dirty list.
- Authenticate the domain with SPF, DKIM and DMARC before the first send.
- Clean bounces and record unsubscribes in every batch to protect sender reputation.
- Segment by function, location, seniority and profile fit.
- Personalise the subject and first line with a verifiable professional fact, never an inferred one.
- Make a single proposal with a yes-or-no question.
- Only send a follow-up if it adds new context about the role.
- Measure positive replies, meetings and unsubscribes, not opens.
This video walks through the message and stopping criteria for a short sequence:
How to personalise a candidate email without seeming intrusive
An email to a candidate should only mention professional signals the person has made public; any other data is for ordering the list. Personalisation should make the message more verifiable, not more intimate.
In 2025, Spain's national cybersecurity institute INCIBE recorded 25,133 phishing incidents in Spain, 19% more than the previous year, with highly personalised AI-assisted messages.
| Criterion | Example | Correct use in the message |
|---|---|---|
| Function | Head of Talent at a Madrid fintech | Name the challenge of hiring data engineers |
| Location | Software engineer in Valencia | Offer hybrid work with the role's office |
| Professional signal | Published a cloud migration project | Ask about their experience on that project |
| Sensitive or inferred data | Estimated age or current salary | Do not use in the message; only to prioritise the list |
Variables estimated by AI, such as English level, decide who you contact first and are not copied into the text. More on which data to use and which to hold back in this note on contact data in recruiting.
How to write the subject line and first recruiting email
The subject line of a recruiting email must make clear what the email is about before it is opened: under 50 characters, a reference to the role or a verifiable fact, no exclamation marks, no urgency and no pretending there was a previous conversation.
Three useful subject line patterns:
- "Data engineer role in Valencia, hybrid", only if city and work mode are confirmed.
- "Your cloud migration project", only if the project is recent and public.
- "A question about your next step in fintech", not with someone who changed jobs a few weeks ago.
The body fits in three sentences and under 120 words: the verifiable fact, the proposal and a question. Example: "I saw the cloud migration project you published. We are looking for someone to lead a data team in Valencia, hybrid, and the client is closing interviews this month. Would fifteen minutes this week work for you, or shall I leave it?"
How many follow-ups to send and when to stop the email sequence
A recruiting email outreach sequence works with four sends over 14 days, plus a reactivation on day 30 only if there is a new role.
| Send | Day | Goal | Condition to send |
|---|---|---|---|
| First email | Day 0 | Offer a specific opportunity with a question | Always, after checking the legal basis |
| Follow-up 1 | Day 3 | Add a new fact about the role | Only if there is no reply or unsubscribe |
| Follow-up 2 | Day 7 | Offer an alternative short conversation | Only if there is no reply or unsubscribe |
| Close | Day 14 | Ask whether the role is not a fit and leave the door open | Only if there is no reply or unsubscribe |
| Reactivation | Day 30 | Present a new role | Outside the sequence, with a new message |
Follow-ups matter. On LinkedIn, the channel HeyTalent has its own data for, one in four replies to invitations sent from its campaigns between April and October 2026 came after a follow-up message, according to HeyTalent's data. That figure is for LinkedIn, not email.
The sequence stops as soon as there is a reply, an unsubscribe, a bounce or a change in the role, even if the table says a send is due. If the role is urgent, three sends in five days are enough.
Which metrics to track in recruiting email outreach
In recruiting email outreach, what matters is the qualified reply rate per segment, meetings per 100 contacts and days to interview. The open rate is a secondary signal, because privacy protections inflate or hide the tracking pixel.
The Spanish benchmark from GDMA and Spotler, which measures email marketing rather than recruiting, gives these figures:
| Metric | 2024 benchmark | 2025 benchmark | How to read it |
|---|---|---|---|
| Unique open rate | 29.7% | 32.9% | Secondary signal, affected by privacy |
| CTR (clicks over deliveries) | 2.25% | 2.1% | Measures interest in the offer |
| CTO (clicks over opens) | Not in the 2024 benchmark | 6.2% | Measures message and proposal quality |
The qualified reply rate is the replies that agree to talk, or turn the role down with a reason, divided by the contacts in the segment. To connect it with the rest of the funnel, this guide to recruitment KPIs helps.
Email or LinkedIn: how to combine both channels with HeyTalent
HeyTalent covers the most time-consuming part of email outreach, finding the person and their contact data, but it does not send the emails: its automated campaigns run on LinkedIn (invitations, messages, InMails and follow-ups). You give the brief, the agent finds profiles on LinkedIn, filters them with AI variables and enriches emails and phone numbers, and you review the list and the messages before launching.
Without a reliable email or phone number there is no sequence to launch. According to the figures HeyTalent publishes, it finds a phone number for 65% of the LinkedIn profiles it enriches, 92% of the numbers it returns are valid, and it refunds the credit when it misses. The emails found can be exported to CSV without limits and sent from the team's own email tool.