Woman Says Her Ex Kept Taking Her Mail and Marking It Return to Sender

A woman says her ex moved out of their apartment the year before, but his presence was still showing up in one place where it absolutely did not belong: her mailbox.

She explained in a Reddit post that after he moved out, he kept demanding that she give him his mail. She told him to change his address to the correct one. According to her, he did eventually update the address, but still had not changed his ID or other information, so when his mail arrived at her place, she would mark it return to sender and put it back.

That part was not the problem.

The problem was what he allegedly did next.

The woman got a call from their son’s school asking for her address because something the school mailed had been returned. The school said the envelope had “return to sender” written on it in her ex’s handwriting, and the post office had deemed it undeliverable.

She gave the school her address again.

It was already the correct one.

That is when she realized what she believed had happened: her ex was taking mail out of her mailbox and marking it return to sender so she would not receive important documents.

Bills. School notices. Court paperwork. Anything.

That is not a small inconvenience. Mail is how important parts of life still move, even now. Schools send records and updates. Courts send notices. Banks send statements. Utilities send bills. Missing mail can cause late payments, missed hearings, school confusion, and bigger problems that do not look like sabotage from the outside.

That is what made the alleged behavior so unsettling.

If someone steals or tampers with your mail, they are not only taking paper. They are interfering with information you need to run your life. And when the person doing it is an ex, it can feel especially controlling because it targets the practical systems around you instead of confronting you directly.

The woman said his “idea of revenge” was to take her mail and write return to sender on it.

That wording says a lot. She did not frame it as a misunderstanding or one misdelivered envelope. She believed it was deliberate. She believed he was using her mailbox as a way to disrupt her life after he moved out.

Commenters quickly pointed out that mail tampering is serious. Several told her to report it to the post office or local postmaster, and others recommended the United States Postal Inspection Service.

One commenter said she should keep the school envelope or ask the school to preserve it because the handwriting could matter as evidence. That was practical advice because the ex’s handwriting on returned mail could help show the mail was not returned by her, the school, or the postal service.

The mailbox itself became part of the solution too. Commenters suggested getting a locking mailbox, putting a hold on her mail, using a post office box for important items, or changing key accounts to a safer mailing address until the issue was handled.

Those steps may feel like a hassle, but they are about control. Once someone has shown they may be willing to go into your mailbox, the goal becomes cutting off access.

The post did not include a long update showing whether the ex was reported or stopped. But the concern was clear. This was not only a bitter ex being annoying. It was a former partner allegedly reaching into her mail and blocking important documents from reaching her.

The school call exposed the pattern.

Before that, she may not have known what she was missing. That is part of what makes mail tampering so frustrating. You only know about the letters you receive. The missing ones can quietly cause damage before you even realize they existed.

For her, the envelope from the school was the warning.

If he was willing to mark school mail return to sender, what else had already been sent back?

Commenters overwhelmingly told her to treat it as mail tampering, not normal ex drama. Many said she should report it to the post office, the local postmaster, or the United States Postal Inspection Service.

Several people suggested calling the school back and asking them to preserve the returned envelope because the handwriting could be evidence.

A lot of commenters told her to put a hold on her mail temporarily or rent a post office box so important bills, school notices, and court paperwork would stop going through a mailbox her ex could access.

Others suggested getting a locking mailbox and, if possible, a camera pointed toward the mailbox to document any future tampering.

The strongest advice was simple: do not argue with him about it. Secure the mail, save the evidence, and report the interference through the proper postal channels.