Build a signature
The code
HTML
Plain text
One signature per inbox BULK
Paste your inbox list with a header row. Every row gets a signature in the type and style chosen above; any column you leave out falls back to what is in the form. Recognised columns: email, first_name, last_name, name, title, company, phone, website, address, linkedin.
Rooster4am builds verified B2B lead lists and cleans the ones you already have, so the sends these signatures go on reach real people.
See Rooster4am lead dataClean a listRooster4am is my own agency.How it works
Pick the platform, then the job
The platform sets how the signature is delivered: rich text for Gmail, Outlook and Apple Mail, a file for classic Outlook or Thunderbird, a rule for Microsoft 365 and Exchange, raw HTML for sending tools. Professional, cold email, reply, corporate or booking link. The type decides which fields appear and whether the output is a styled table or plain lines.
Choose a template, fill it in
Nine designed templates, from a classic photo-left layout to a monogram that needs no image. The preview redraws as you switch, so you compare them on your own details. Basic mode asks for six fields; Advanced adds typeface, image shape, every social link, the raw code and the bulk builder. Empty fields are left out, not rendered as gaps. Social handles become full links, a bare domain becomes a proper URL, and an image has to be a hosted https file.
Read the weight panel
Links, images, bytes and lines are counted on the actual output, then judged against the type: a cold signature is held to a much tighter budget than a professional one.
Copy in the right format
The main button copies in the form your platform takes: rich text for Gmail, Outlook and Apple Mail, HTML for Thunderbird, Exchange rules and sending tools. Plain text is always there, and the download row gives PNG, PDF, HTML and TXT.
What goes in, what stays out
First name or full name, title, company. That tells the reader a person wrote it and where they work, which is all a first touch needs. Logos, headshots, social icons, banners and a row of links belong on your main inbox, not on an address that started sending three weeks ago. Every image is a remote load, every link is another domain whose reputation is judged with yours, and tracked links get rewritten through a tracking domain on top. The output here is unstyled lines, and the company domain stays as text unless you ask for a link.
Opt-out and address without an unsubscribe link
CAN-SPAM requires a clear way to stop the emails and a valid physical postal address. A sentence such as "Not relevant? Reply no and I will not follow up" satisfies the first, adds no link, and gives an irritated reader something easier than the spam button. Pick a line from the dropdown or write your own. The address can be a registered office or a mailbox service.
Rotation, names and spintax
A campaign rotates through many inboxes. If the body says Sarah and the signature says Marcus, the reader notices before any filter does. Set a signature on each account and place it with the tool's tag: {{accountSignature}} in Instantly, %signature% in Smartlead. The spintax closing word varies Best, Thanks and Cheers per send, written in whichever syntax the selected platform uses. Switch to Advanced for the bulk builder: paste the inbox list and download a CSV with one signature per sender.
Follow-ups and replies
By step two the reader has seen your title and company. Drop to the Reply type, a closing word and a first name. When someone answers, reply from your real signature if you like: that is a conversation now, not a cold send. If the numbers are already bad, the signature is rarely the cause. Start with the signature checker, then look at DNS and volume per inbox.
This page is the free email signature generator with one platform preselected. Every platform, type and template is still in the dropdowns.
Frequently asked questions
Should cold emails have a signature?
Yes, a short plain one: name, title, company, then an opt-out sentence and a postal address. No logo, icons or banner.
Do links in a signature hurt cold email deliverability?
One link is rarely fatal, but each adds a domain to be judged, and tracking rewrites it. On a first touch from a young inbox, keep the domain as plain text.
How do I add signatures to many Instantly inboxes?
Use Advanced mode here, paste the inbox list into the bulk builder and download the CSV. Set each account's signature, then put {{accountSignature}} in the sequence.
Is a reply-based opt-out legal?
CAN-SPAM accepts a reply-to-opt-out mechanism as long as it is clear and you honour it within ten business days. Other countries differ; check the CAN-SPAM checker for the UK, EU and Canada.
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Monitoring & retainer
Infrastructure drifts. Records get edited, certificates expire, domains get listed. Ongoing eyes on the fleet.
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- Monthly reporting
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Start with a call
Bring a domain and the symptom. I will tell you what is actually wrong and whether you need me at all — plenty of people leave that call able to fix it themselves.
Thirty minutes, no pitch
We will run the checks together on your actual domains, and you will leave knowing what is broken, what it takes to fix, and what it should cost. If that is a job you can do in-house, I will say so.