dafthack/MailSniper

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MailSniper is a penetration testing tool for searching through email in a Microsoft Exchange environment for specific terms (passwords, insider intel, network architecture information, etc.). It can be used as a non-administrative user to search their own email, or by an administrator to search the mailboxes of every user in a domain.

Stars: 3.3k
Forks: 597
Open beginner issues: 0
Indexed issues: 21
Avg merge: 1h 11m
Merged PRs (30d): 1

Dominant language: PowerShell
License: MIT
Last GitHub push: Aug 26, 2026
Latest indexed: Sep 20, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

Open All

21 open issues indexed

Exception calling "Bind" with "2" argument(s): "The request failed. The remote server returned an error: (401) Unauthorized." Open

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

dafthack/MailSniper#109 · 1 comment · Opened Jul 28, 2025
mailsniper Open

Difficulty 5/5 Over a week Newbie friendliness 5/100

dafthack/MailSniper#103 · 1 reaction · Opened Apr 26, 2024
The underlying connection was closed: An unexpected error occurred on a send. Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

dafthack/MailSniper#102 · 1 comment · Opened Dec 7, 2022
Key word synonym's Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

dafthack/MailSniper#101 · Opened Oct 20, 2022
Feature Request - Rate Limiter Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

dafthack/MailSniper#99 · Opened Apr 11, 2022
The request failed. The remote server returned an error : Forbidden Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

dafthack/MailSniper#91 · 4 comments · Opened May 31, 2021
Impersonation Account Credential Open

question

Difficulty 4/5 3-5 days Newbie friendliness 20/100

dafthack/MailSniper#85 · 2 comments · 2 reactions · Opened Dec 16, 2020
i need to testing the Invoke-PasswordSprayEWS Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 20/100

dafthack/MailSniper#82 · Opened Nov 19, 2019
Problems running Invoke-SelfSearch and Invoke-GlobalMailSearch Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

dafthack/MailSniper#74 · 2 comments · Opened Jan 31, 2019
Trouble with module? Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 15/100

dafthack/MailSniper#72 · Opened Sep 5, 2018
Exception calling Bind: ID property must be set Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 15/100

dafthack/MailSniper#71 · Opened Sep 4, 2018
Feature Request : Check userlist with specific password for each Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

dafthack/MailSniper#68 · Opened Aug 2, 2018
Feature Request - Proxy support Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

dafthack/MailSniper#66 · 1 comment · Opened Jul 18, 2018
Invoke-WebRequest Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 25/100

dafthack/MailSniper#62 · 1 comment · Opened May 15, 2018
o365 mail sniffering feature : relam based site Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 20/100

dafthack/MailSniper#61 · Opened Mar 29, 2018
Get-GlobalAddressList - Exception calling ResolveName (403) Forbidden Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 20/100

dafthack/MailSniper#58 · 1 comment · Opened Jan 22, 2018
You cannot call a method on a null-valued expression. (Invoke-PasswordSprayOWA) Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 25/100

dafthack/MailSniper#56 · 1 comment · Opened Oct 24, 2017
Invoke-GlobalMailSearch for O365 Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

dafthack/MailSniper#54 · 5 comments · Opened Sep 5, 2017
Advice on succeeding with Invoke-DomainHarvestOWA? Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

dafthack/MailSniper#52 · 8 comments · Opened Jul 14, 2017
Add ability to export to pst Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

dafthack/MailSniper#41 · 1 comment · 1 reaction · Opened Oct 27, 2016
Add custom date search ranges Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

dafthack/MailSniper#13 · 2 reactions · Opened Sep 13, 2016

dafthack/MailSniper

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