How to email a resume: an example email, and the file checks most guides skip

A complete example email for sending your resume, the subject line and file name to use, and two checks to run on the PDF before you press send.

Emailing a resume looks like the easy part of applying. You write three lines, attach a file and press send. Most of what goes wrong happens in places you never see: the file the recruiter's software reads, the attachment Gmail quietly swaps for a link, the subject line nobody can find a week later.

This guide gives you a complete example email, the subject line and file name to use, what to write in the body when it is your cover letter, and the result of one test we ran on a PDF resume: from 0.15em of letter spacing in the header, the job title came out of the parser letter by letter. It changes how you should export yours.

The example email, start to finish

Here is a full email for a posting that says "send your resume to" a named person. Every part of it is reused below.

The numbers and names are invented. The shape is the part to copy.

Check the file before you attach it

Most guides tell you to send a PDF and stop there. A PDF is the right default, but the file itself can still fail, and you will not see it fail. A person opens your PDF and sees a page. An applicant tracking system opens it and sees only the text the file hands over. If the recruiter forwards your email into their ATS, or the address you write to feeds one directly, that text is what gets searched.

Wide letter spacing turns words into single letters

Many resume templates set the name and job title in capitals with wide letter spacing. It looks tidy. We wanted to know what a parser makes of it, so we built a one-page resume in HTML (name at 26pt, job title at 11pt, in DejaVu Sans, the font Chrome substituted for Arial on our Linux test machine), printed it to PDF with Chrome and ran the file through pdf.js, the PDF engine HiredFolio's own scanner uses, once per spacing value.

At 0, 0.05em and 0.1em of letter spacing, the header came out as words: CHARGÉE DE COMMUNICATION. At 0.2em and 0.35em, the same header came out like this (0.15em gave the same result, with two letters still stuck together):

C H A R G É E D E C O M M U N I C A T I O N

A search for the job title in that header now finds nothing, because the parser sees 22 one-letter words. The body text was untouched, and accented letters survived in every version. The full test, with the HTML and script, is reproducible. It covers one font in one PDF engine, so a different ATS may split at a different value. Read it as the direction of the risk.

Our ATS scanner checks for this, but only in bulk. When more than 30% of the words it pulls from a PDF are single letters, it reports the text as unreadable instead of scoring it. Our test resume is short, 90 words, so the 36 letters of its spaced name and title were enough to trip that rule at 0.2em (37 single letters out of 121 words, 31%) and not quite at 0.15em (35 out of 120, 29%). A full one-page resume has several hundred words, and the same 36 letters stay well under the line, so the scan passes while the job title in your header is still unreadable. The check below catches what the threshold misses.

The copy-paste test

You do not need our scanner for a first check. Open the PDF you are about to send, select all the text, and paste it into a plain text editor.

• Letters with spaces between them. Your heading spacing is too wide. Reduce it in the template, or remove it from the name and job title at least.
• Nothing pastes, or boxes and symbols paste. The text is an image or uses a font with no text map. Canva exports are the usual culprit; our guide to Canva resumes and ATS covers the fix.
• Sidebar text mixed into your job history line by line. The two-column layout reads in the wrong order. Our resume formatting guide explains which layouts survive.

If the paste reads like your resume, top to bottom, the file is safe to send.

Keep the attachment under 25 MB, or it stops being an attachment

A resume PDF is usually well under 1 MB. Files get heavy when you add a portfolio, scanned certificates, or a resume with full-resolution photos in it.

Gmail's limit is specific. Its help page says: "For personal Gmail accounts, the limit is 25 MB." Past that, the file does not bounce. "Gmail automatically removes the attachment and adds it as a Google Drive link in the email" (Google, Gmail Help, checked 2026-10-03).

That swap matters because a link is not a file: if the email gets forwarded into an applicant tracking system, there is nothing attached for it to read, and the recruiter depends on the sharing settings of the Drive file.

So send the resume as its own small PDF. If you have a large portfolio, put it on a page you control and link it from the resume and the signature.

Subject line and file name

Both are search terms for the recruiter, so write them the way someone would search.

The subject line names the role, any reference number in the posting, and your name:

• Application: Marketing Coordinator (ref. MC-114), Dana Whitfield
• Marketing Coordinator application, referred by Sam Ortiz
• Resume: Warehouse Supervisor, night shift, Dana Whitfield

If the posting tells you what to put in the subject, use its wording exactly. Some teams filter on it.

The file name carries your name and the document type: Dana-Whitfield-Resume.pdf. A recruiter who downloads forty attachments called Resume.pdf will lose track of yours. If you build your resume in HiredFolio, the exported PDF takes the resume's title as its file name, so rename the resume itself (for example "Dana Whitfield Resume") before you export.

What to write in the body: your email is the cover letter

When you apply by email and the posting does not ask for a separate cover letter, the body of the email is your cover letter. Write it as one. A three-line email that says "please find my resume attached" next to a cover letter PDF asks the recruiter to open a second file to learn why you are writing. Many won't.

Keep it short, because it is read in an inbox, often on a phone. The example above runs to about 90 words. The shape:

1. The role. Name it in the first sentence, and where you found it.
2. One proof. A result with a number, chosen to match the posting.
3. Why this employer. One detail from the posting or the company that you can connect to your experience.
4. The file and the next step. Say the resume is attached, and ask for a call.

Attach a separate cover letter as a PDF only when the posting asks for one, or when the sector still expects a formal letter. Then the email body shrinks to two or three lines that introduce the attachments. Our cover letter guide has the full letter structure and an annotated example for that case.

A shorter version for referrals

When someone inside the company passed your name on, their name goes in the subject line and the first sentence. It is the reason your email gets opened.

Five details to check before you press send

• The address you send from. Use a personal address with your name in it, never your current work account. That mailbox belongs to your employer, and so do the messages in it.
• The greeting. Use the name in the posting. If there isn't one, "Hello" plus the team name ("Hello Marketing team") beats "To whom it may concern".
• The instructions in the posting. If it asks for a Word file, a reference number or a portfolio link, do exactly that. Applicants who ignore the instructions are the easiest to screen out.
• A test send to yourself. Open it on your phone. Check that the attachment opens, the name in the file is right, and nothing from a previous application is left in the text.
• When to send. Send it when it is ready. Use your email app's schedule-send feature if you are writing at 2 a.m. and would rather it arrived during working hours.

Then write the date down. If you hear nothing in a week or two, a short reply in the same thread brings your resume back to the top of the inbox. Our follow-up email guide gives the timing and seven templates.

Track what you sent in HiredFolio

An emailed application leaves no trace in a job board's "applied" list, so it is the one most likely to be forgotten. In HiredFolio you save the job (the Chrome extension does it in one click from the posting), set its status to Applied with the date, and get a follow-up reminder when it is due. When it is time to write, the job's email templates fill in the role and company for you.

You can also build the resume there and run the PDF through the ATS scanner to see the keywords a recruiter's software would find in it. Build and track your applications in HiredFolio.

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