(free) postmaster tools

postmaster tools

Topics in this area:

click.it link tracker

click.it: the link tracker with instant email feedback

email.locker

a place where email messages can be stored and retrieved when needed

enigma secure email

share your secrets via email - enigma is a secure, one-time use, passwordless link generator

inxsend fake smtp/api service

a fake smtp/api service with web gui for testing emails in applications easily

tester for spf and dkim

an online check tool to validate SPF and DKIM settings sending an email message

Subsections of (free) postmaster tools

click.it link tracker

flashmail

with instant email feedback


The free version is fully functional, with some limitations:

  • the email messages are sent to the inxbox demo temporary mailbox and kept for seven days
  • after the click, the browser will show a standard “thank you” page
  • the tracking domain is “click.it”

The paid version is customized and lets you:

email.locker

email locker

email.locker is a place where email messages can be stored and retrieved when needed.
After seven days the email messages are automatically deleted.

Try it now:

  1. send a message to: any.word@email.locker
  2. access the box at: https://email.locker/any.word

email.locker boxes are created on the fly by sending an email message to them.
Because there is no sign-up, email.locker address is essentially a password,
so pick something that’s not easily guessable.

If you are receiving sensitive information, consider reserving the box and restricting access to it
or get a dedicated email.locker at “@locker.yourcompany.com”. Contact us for the details.

All incoming messages to email.locker are scanned with RealSender authentication checks,
so you can verify whether the sender address is real or fake.

A prefix is added to the subject of each received email,
telling you if the sender domain is correctly authenticated with SPF and DKIM.
A final || OK || is added when you can be 100% sure of sender’s domain authenticity.

enigma secure email

secure email secrets

Email is not private or secure. It wasn’t designed with privacy or security in mind.
Anyone who handles your email in transit can read it,
including your ISP, a hacker, or the NSA (U.S. National Security Agency).

End-to-end (e2ee) encryption for email can be used to ensure
that only the sender and the recipient of a message can read the contents.
PGP is the best solution for secure communications with a partner that is
already using it. Asking your counterpart to start using PGP could be hard.

Enigma is an app based on the SnapPass open source project.
It allows you to share secrets in a secure, ephemeral way.
Input a single or multi-line secret, its expiration time and click Generate URL.
Share the one-time use URL with your intended recipient.

Try it out:
enigma.realsender.com

inxsend fake smtp/api service

inxsend fake smtp/api service

inxsend is a Fake SMTP/API Service

for testing emails in applications easily
by sending all the messages to a single mail server
SMTP server settings

Configure the smtp server with the following parameters:

Server Name: inxsend.realsender.com  
Port:        25 |or| 2525 |or| 587 (+TLS) |or| 465 (+SSL)  
User Name:   CDED54  
Password:    478DED
API server settings

Use API access as described in the “sending via api” instructions, with the following parameters:

Server address: (https://) inxsend-api.realsender.com/mail/send
apiuser:        CDED54  
apipass:        478DED
Send a test message

Send a message to:
[yourname]@inxbox.realsender.com

!! all received messages are visible to anyone !!
(other recipients will be rejected)

Let us know if you’re facing any issue.

Check reception

Open https://inxbox.realsender.com/monitor and check for reception
(use Google Chrome browser > New Incognito Window or Microsoft Edge browser)

Further information on this mailbox is available at: inxbox demo temporary email.

tester for spf and dkim

spf + dkim tester

RealSender offers a free online check tool
to validate your SPF + DKIM settings sending an email message:

  1. send an email to spf@tester.realsender.com
  2. check online the SPF validation results at tester.realsender.com/spf
    (it will take a minute to appear)

During verification, a prefix is added to the subject
if the message is not authenticated correctly.

Details on how it works
are located in the “email authentication basics” area of the website:
email authentication basics :: <spf> check online