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“As Per Trail Mail” — Meaning, Usage & 10 Professional Phrases
You’ll be reading through professional correspondence and come across phrases such as “as per trail mail” or “please refer to the email trail below.” These phrases are important language shorthand in business, guiding the reader to the ongoing conversation history.
What Does “As Per Trail Mail” Mean?
The meaning of “as per trail mail” is “based on, according to, or in reference to the previous email conversation shown below.”
It is used to guide a reader to the chronological history of messages below the current reply field. Using this phrase helps your recipient find background information, previous agreements, or data points without you having to type them all again.
Regional Context & Variations
This phrase is a key part of South Asian Business English, widely used in corporate offices, tech parks, and government communication throughout India, Pakistan, and Bangladesh. It can be substituted with expressions such as:
- “As per trailing mail”
- “As per the trailing email below”
- “With reference to the trailing mail”
The term “trail mail” is deeply professional and standard within these regional business hubs. However, international teams and Western clients (US/UK) more often replace “trail” with “chain” or “thread.”
10 Ready-to-Use Professional Phrases (Copy & Paste)
| Phrase | When to Use |
|---|---|
| “As per trail mail…” | To establish clear facts or reference terms agreed upon earlier in the conversation. |
| “As per the trailing mail below…” | A slightly more formal, polished variation to guide the reader downward. |
| “Please refer to the email trail below” | A direct, professional instruction asking the recipient to read the history for full context. |
| “Please find the email trail below for your reference” | Best used when forwarding a long conversation to a new person who needs to catch up. |
| “Further to the trailing email…” | An elegant way to continue a discussion or add a new point to an ongoing topic. |
| “With reference to the email trail below…” | Highly formal; well-suited for legal, financial, or contract-heavy correspondence. |
| “Kindly refer to the trailing email below” | A polite, soft request commonly used in customer support or administrative notes. |
| “As discussed in the email trail…” | To summarise a point or action item that was previously agreed upon. |
| “Please see the email trail below” | A clean, direct, and universally understood phrase for quick internal updates. |
| “I have attached the email trail for your reference” | Used when sending a summary email while including the deep context in an attachment or forward. |
Note on direction: Some writers use “with reference to the above email trail” when the previous messages appear above their text rather than below. Both “above” and “below” are correct — the direction depends on your email client’s display setting and where the history is positioned relative to your new message.
How to Use Trail Mail in a Sentence (Real World Examples)

Using these terms correctly means inserting them into standard business sentence structures.
- To confirm a deadline: “As per trail mail, the final deliverable deadline was confirmed as June 15th, 2026.”
- To onboard a team member: “Hi Rahul, please refer to the email trail below for the complete discussion regarding the software deployment.”
- To follow up: “Further to the trailing email, I wanted to follow up on the pending approvals from the finance team.”
- To establish agreement terms: “As per the trailing mail, the payment terms were explicitly agreed at 30 days from invoice generation.”
- To assign action items: “Kindly do the needful as per the trail mail below and share the status report.”
What does “further to the trailing email” mean? “Further to the trailing email” means “continuing from / in addition to the email conversation shown below.” It is used to introduce a follow-up point or new action item on an ongoing discussion without repeating the full background. Example: “Further to the trailing email, I confirm that the delivery date has been moved to the 20th.”
Grammar & Usage Guide: The Missing “The”
Incorrect: “As per trail email…” or “As per trail mail…”
Correct: “As per the email trail…” or “As per the trail mail…”
Including the article “the” is important for standard grammatical correctness — it tells the reader you are referring to a specific, shared history log directly below your message. In casual South Asian office communication, the article is often dropped, and this is widely understood — but for formal correspondence, include “the.”
Global & Formal Alternatives to “As Per Trail Mail”
For international clients, US/UK tech companies, or in a legal setting, use English phrases that are widely accepted across the globe instead of “as per trail mail.” These options will make your emails readable, clear, and suited for an international corporate audience.
Modern Global Corporate Standards
- “As per the email thread” — Very good for everyday global communication. Same meaning with standard international tech phrasing. Example: “As per the email thread, we are still waiting on the client’s asset submission before initiating the design phase.”
- “As outlined in the email exchange…” — A more sophisticated version that draws attention to a two-way dialogue. Example: “As outlined in the email exchange last Tuesday, the service-level agreement targets will be updated by tomorrow morning.”
Clean & Clear Direct Alternatives
- “As stated in the email…” — Simple, professional, and eliminates any confusion with regional terms. Example: “As stated in the email from operations, the office server maintenance is scheduled for midnight this weekend.”
- “According to the email chain…” — Refers directly to the historical order of emails. Example: “According to the email chain, the regional sales target was adjusted down to fifteen percent.”
High-Level Formal & Legal Communication
- “In accordance with the email…” — Excellent for formal business agreements or legally binding communications. Example: “In accordance with the email sent by the legal team, we have modified section four of the procurement contract.”
- “Based on the email correspondence…” — Umbrella formal phrase covering all types of email exchanges. Example: “Based on the email correspondence between our executives, the acquisition terms are now frozen.”
Common Mistakes to Avoid
- ❌ Avoid: “As per below trailing email” — grammatically awkward. Use: “As per the email trail below.”
- ❌ The Global “Revert” Trap: “As per trail mail, please revert” — “revert” means return to a previous state, not reply. Use: “As per the email trail below, please reply at your earliest convenience.”
- ❌ The “Do the Needful” Divide: “Kindly do the needful as per trail mail” is standard South Asian format. For global audiences, use: “Please take the required action as outlined in the email thread below.”
- ❌ Leaking Sensitive Internal Logs: When using “please read the email trail below,” always review the material you are sending. Leaving internal pricing debates or casual commentary at the bottom of a forwarded client email is a significant privacy risk.
- ❌ Keeping a trail too long: Trim the trail to only what is relevant before sending. Forwarding a 30-message trail when only the last 3 messages matter wastes the recipient’s time.
Frequently Asked Questions
Is “as per trail mail” correct grammar?
Yes, it is grammatically correct as a business idiom. “As per” is an accepted prepositional phrase meaning “according to.” While a Western environment will favour “as mentioned in the email thread below,” this phrase is well accepted in South Asian corporate offices. For full formal correctness, include the article: “as per the trail mail.”
What does “please trail this email” mean?
If a manager or client asks you to “trail this email,” they want you to forward the email while keeping the entire previous conversation history intact — so the next person receives the full context of what has been discussed.
What is the difference between “as per trail mail” and “as per trailing mail”?
There is no difference in meaning. Both expressions refer to the same email history. “Trailing mail” is a slightly longer and more participle-based form of “trail mail.” Use whichever your workplace prefers.
What is the meaning of “noted your content of trailing email”?
This is a standard South Asian professional acknowledgement phrase. It means: “I have read and understood everything written in the email history below, and I am acknowledging your message.” A more globally accepted equivalent would be: “Acknowledged — thank you for the update as per the email below.”
Can I say “please trail this email” in formal communication?
Yes — within South Asian professional contexts this is widely understood and appropriate. For international or formal external communication, prefer: “Please forward this email with the complete conversation history” or “Please include the email thread when forwarding.”