PostoMe is a "future letter" platform. Write a letter, choose a delivery date — tomorrow or ten years from now — and we'll send it to the recipient via email or SMS when the time comes. It could be a promise to your future self, a surprise for a friend, or a message across time to someone you love.

Can I send a letter to someone else?

Absolutely. Enter the recipient's email or phone number, and we'll notify them on delivery day. You can also skip the contact info and generate a "claim code" instead — hand it to them in person, just like a real letter.

How far into the future can I schedule a letter?

Anywhere from one day to 30 years. Letters due within a year are completely free. Longer time spans cost at most about as much as a cup of coffee. We'll safeguard your letter until the day it's meant to be opened.

Is my letter private? Can others see it?

When writing a letter, you can choose one of three visibility settings: "Public Now" (visible after sealing), "Public on Delivery" (default, visible after delivery), or "Private" (only you and the recipient). We use encrypted transmission and secure storage to protect your content.

Will my letter be delivered on time?

Our delivery system checks for due letters every minute and dispatches them immediately. If you're worried about the recipient's email becoming invalid or phone number changing, every letter comes with its own "claim code" as a safety net — no matter what changes, the code always works.

Can I edit a letter after sealing it?

Once sealed, the letter content is locked — that's by design, like mailing a real letter. But before delivery, you can still update the recipient's contact info or generate a claim code.

Do I need an account to write a letter?

You can start writing without logging in — capture your inspiration the moment it strikes. Saving drafts, sealing letters, and viewing your history require an account. Signing up takes just seconds with your email or phone number.

How do I reach you if I have a question?

Email us at help@postome.com and we'll get back to you as soon as possible.

Write a Letter to the Future

Capture your thoughts, stories, and hopes. Seal them in time, and let them arrive on a future day — addressed to the one person you most want to reach. Maybe even your future self.

Time knows the answer.

Start Writing Read Others' Letters

Letters from Across Time

Every letter carries a story, traveling through time to find you

我等你很久了

Delivered

我一直在这里等你啊。所有的等待我知道都会是值得的。不辜负流年，只为等到你。为此，我愿意用那么多年去等待，不轻浮，不妥协。我一直相信，当你出现的那一刻，我一切的等待都会是值得的。等你那么久，希望能一直久下去。一直久到我们都不记得。亲爱的，我知

人来疯与你无关

2013年6月15日 → 2018年6月15日

还有如初的澎湃吗

Delivered

抱着什么心情写这封信的呢？去年写给自己的信好像还没收到吧就在这里写下明年的信了2015年呢我经历了辛苦的高三再辛苦又如何？我也熬过去了也认识了很多小婊贝胡比徐杰玲 LEMONY等等毫无疑问 ‘STUPID 7’就是我在高三最大的

哆啦酱DS

2015年8月19日 → 2016年8月19日

999

Delivered

Hey！我亲爱的曾蓉小朋友没想到吧给你写这封信的时候我19岁哦现在是2025年对吧我是来自2021年2月16日农历正月初五的刘赟我想了很久要不要称你为女士因为我不知道你现在是否已嫁为人妻或者是已经嫁给我 2025.5.2

刘赟

2021年2月16日 → 2021年2月17日

Write Mine See More

Voices from Readers

Echoes Left in Time

“爱你宝贝 ”

醒

《致我的大宝贝-吕家福》

“南有乔木，不可休思；汉有游女，不可求思。 ”

qyy

《一封来自2024年01月13日的信》

A Global Community, Writing Across Time

Since 2012, we've kept every letter's promise

33,309
letters entrusted to time: 12y
Longest delivery span: 4,207
letters in transit

Frequently Asked Questions

: PostoMe is a "future letter" platform. Write a letter, choose a delivery date — tomorrow or ten years from now — and we'll send it to the recipient via email or SMS when the time comes. It could be a promise to your future self, a surprise for a friend, or a message across time to someone you love.
: Absolutely. Enter the recipient's email or phone number, and we'll notify them on delivery day. You can also skip the contact info and generate a "claim code" instead — hand it to them in person, just like a real letter.
: Anywhere from one day to 30 years. Letters due within a year are completely free. Longer time spans cost at most about as much as a cup of coffee. We'll safeguard your letter until the day it's meant to be opened.
: When writing a letter, you can choose one of three visibility settings: "Public Now" (visible after sealing), "Public on Delivery" (default, visible after delivery), or "Private" (only you and the recipient). We use encrypted transmission and secure storage to protect your content.
: Our delivery system checks for due letters every minute and dispatches them immediately. If you're worried about the recipient's email becoming invalid or phone number changing, every letter comes with its own "claim code" as a safety net — no matter what changes, the code always works.
: Once sealed, the letter content is locked — that's by design, like mailing a real letter. But before delivery, you can still update the recipient's contact info or generate a claim code.
: You can start writing without logging in — capture your inspiration the moment it strikes. Saving drafts, sealing letters, and viewing your history require an account. Signing up takes just seconds with your email or phone number.
: Email us at help@postome.com and we'll get back to you as soon as possible.

See all 18 FAQs →