Collaborate Disseminate
We are using Amazon SES (Simple Main Service) with Cpanel (Exim, Laraval, and PHP). Yesterday thousands of spam emails were sent from our main email info@ourdomain.com. cPHulk Brute Force Protection was enabled and we changed the email pas… Continue reading Spam emails sent from our main domain email
i am trying to print the output of HELP command not the output of me connecting to the SMTP server
that is how my code looks like
**import socket
s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.connect(("localhost",25))
s…. Continue reading how to communicate with an smtp serverusing socket library in python
A new attack technique named SMTP Smuggling can allow malicious actors to send out spoofed emails that bypass authentication mechanisms.
The post SMTP Smuggling Allows Spoofed Emails to Bypass Authentication Protocols appeared first on SecurityWeek.
Continue reading SMTP Smuggling Allows Spoofed Emails to Bypass Authentication Protocols
I am trying to set up an email server using postfix, dovecot and roundcube, I am following the official documentation. I have set up separate servers for intranet and internet emails as well as set up TLS (for internet), clamav and spamass… Continue reading What can be practical vulnerabilities in an email setup? [closed]
I send an email for the first time to an .gov.ar website because I found a public document that shouldn’t be public, and some hours later I received the error "The maximum number of delivery attempts has been reached". But along … Continue reading Email bounce error "not permitted by remote SMTP server" returns a leak? [closed]
As an experiment, I attempted to setup a CNAME for mail.mydomain.com pointing to mail.myisp.com, and using mail.mydomain.com instead of mail.myisp.com in setting up email clients connecting to that using TLS (aka SSL) for IMAP/POP/SMTP
One… Continue reading CNAME redirection and certificate
I’m testing my SMTP server using metasploit to see what information I can extract.
Currently I’m trying to enumerate SMTP users using smtp_enum module.
I’ve encountered a problem, the server introduces itself as mail.example.com in the ban… Continue reading metasploit smtp_enum: Testing different domain names
Is there a way to harden Exchange Online to prevent spoofing of internal addresses using SMTP?
For example, if I connect to Outlook’s SMTP server and issue the following commands:
HELO domain.com
MAIL FROM: ceo@domain.com
RCPT TO: employee… Continue reading Internal Address Spoofing using Outlook SMTP Server [migrated]
Can SMTP be relied on to send confidential information and attachments in 2023?
With the concentration of email accounts in big cloud platforms belonging to Microsoft, Google and others, is email more secure today than it was a few years a… Continue reading How secure is SMTP email today? [duplicate]
In setting up SMTP MTA Strict Transport Security (RFC 8461) for my domain, I’ve noticed some contradictory advice and practice: although the maximum value for the max_age policy value is around one year and the RFC states that "implem… Continue reading What are the risks of an MTA-STS policy with a long max_age?