Warming up
Transactional email API
340 UK medical clinics and practices name Manchester on their website and publish an email address, as of September 29, 2026. M20 is the busiest postcode district among those that publish one, and Microsoft 365 handles email for 11% of them.
Searching is free. You only spend allowance when you export.
119 of the 340 publish a postcode. Among them, M20 leads with 8. Districts with fewer than five companies are left out.
| M20 | 8 (7%) |
|---|---|
| SK9 | 7 (6%) |
| M2 | 6 (5%) |
| M16 | 5 (4%) |
| M34 | 5 (4%) |
| M30 | 5 (4%) |
| M33 | 5 (4%) |
| M3 | 5 (4%) |
Every company here publishes an email address. These are the other routes and signals their websites carry.
A second route for when email goes unanswered.
Growing firms buy more. A useful first filter.
Who hosts their email decides which spam filter reads your message. What their site is built on says what else they already pay for.
| Microsoft 365 | 38 (11%) |
|---|---|
| Google Workspace | 32 (9%) |
| Self-hosted | 21 (6%) |
| Hostinger | 5 (1%) |
| Other or unknown | 244 (72%) |
Read from each domain's public MX record. If most of your list is on one provider, warm up a mailbox on that provider first. Filter by provider in the lead finder.
Share of these companies whose homepage loads each technology. Google Analytics is left out because nearly everyone runs it.
Some sites tell search engines exactly what kind of business they are, in structured data. These are the types they declare most often, which shows the mix inside this category.
| Dentist | 28 (8%) |
|---|---|
| Medical clinic | 18 (5%) |
| Medical business | 13 (4%) |
| Medical organization | 12 (4%) |
What we have learned about emailing medical clinics and practices. The numbers above tell you how many there are; this is how to get a reply.
Clinics care about patient experience, no-shows and staff time, and they are wary of anything touching patient data. Lead with one of those outcomes and say clearly that you never need patient records.
Hi [first name], private clinics your size tell us missed appointments are the most expensive admin problem they have. We help practices cut them without adding work for reception, and without touching patient records. Would a short example help?
Replace the bracketed parts per company. In a Warmerly campaign they fill from the lead's own fields.
Mid-afternoon, after the morning clinic list and before evening appointments. Practice managers clear email then.
340 UK medical clinics and practices in Warmerly's database name Manchester on their website and publish an email address, counted on September 29, 2026. A company is matched when its site text mentions Manchester, the same way a city search works in the lead finder, so a firm based elsewhere with a Manchester office is included.
Microsoft 365 runs email for 11% of them, followed by Google Workspace at 9%. It is read from each domain's public MX records. It matters for cold email because Google and Microsoft filter differently, so a sending mailbox on the same provider as most of your list is worth warming up first.
By full-text search over each company's own website text, the same match the lead finder uses when you type Manchester into the city filter. It is broader than a registered address: 119 of these companies publish a postcode, which is where the district breakdown on this page comes from.
Yes. Searching the database in Warmerly is free, and you see the same count as this page before spending anything. Exporting or adding companies to a campaign uses your plan's monthly lead allowance. Every result is a business contact route the company publishes itself, and any company that has asked to be removed is excluded. This page shows totals only, never individual companies.
Filter them by size, founding year, technology and hiring, see what each record holds, then send from warmed-up mailboxes in the same tool.
