www.verifyemailaddress.org
Use our Email Verifier to Verify Email Address online. Our free verifier tool for email will lookup and check emails to see if they are valid.
mailtester.com
Check if an e-mail address is valid or not. Find out why a mail bounces. Get technical information about a mail account and it's mail (SMTP) server.
www.spamcop.net
SpamCop determines the origin of unwanted email/spam and reports it to the relevant Internet service providers. You can fight against the spammers with this free website.
www.mxcz.net/tools/en-US/
This site has many tools and are as follows:
Encode/Decode:
www.cyberforensics.in/OnlineEmailTracer/index.aspx
EmailTracer is a tool to track email sender’s identity. It analyzes the email header and gives the complete details of the sender like IP address, which is key point to find the culprit and the route followed by the ma ...
www.levinecentral.com/mail_parse/default.aspx
Mail Parse is a page that analyzes email headers and displays the routing hops through all the reported mail servers the message traversed. Tracing the route and displaying info on the mail servers along with spam lookups.
This is a basic email ...
testconnectivity.microsoft.com
A set of tools for testing connectivity to you Exchange server.
www.ismymailsecure.com
Check your email server's security settings.
www.emailsecuritycheck.net
Check your email security with our free email security test.
On this page, you can request a set of sample messages to be delivered to an email address of your choice. These messages can be used to perform a basic test if your email filtering s ...
luxsci.com/extranet/tlschecker.html
This page is used to check whether the email severs used for email addresses in a particular domain support opportunistic TLS
www.checktls.com
Secure eMail Web Tools to Test and Monitor TLS eMail.
www.whitepeaksoftware.com/smtp-diagnostics
SMTP Diagnostics is a simple mail program enabling you to troubleshoot problems with outgoing email and assist with configuring outgoing (SMTP) servers.
An excellent SMTP diagnositc program with server response messages.
www.socketlabs.com/smtp-server-connection-diagnostics-tool/
Free SMTP Server Connection Diagnostics Tool enables you to connect to SMTP Servers and step through transactions with our without SSL.
portal.office.com/servicestatus
See the Service Status of Outlook.com
www.arclab.com/en/amlc/
MailList Controller is an email newsletter software for sending personalized email marketing campaigns and newsletters to your contact lists.
This software has an extensive list of features.
emailsearchtool.com
EmailSearchTool.com is a Free Email and People Search Engine that provides you with people-related data fast and reliable. Free People Search, Reverse Phone Search, Reverse Email Search and Name Search are available online. Innovating technologies, tru ...
www.fastmail.fm/help/technology_ssl_vs_tls_starttls.html
There's often quite a bit of confusion about the different terms SSL vs TLS vs STARTTLS. This article explains the differences.
en.wikipedia.org/wiki/STARTTLS
An article from wikipedia describing STRTTLS
stackoverflow.com/questions/5540374/starttls-vs-ssl-tls
Mailclients offer both settings, the STARTTLS and SSL/TLS. What is the difference between STARTTLS and SSL/TLS?
This thread gives an ecellent explanation of this subject.
www.limilabs.com/blog/ssl-vs-tls-vs-starttls-stls
There's often quite a confusion about the different terms: SSL, TLS, STARTTLS and STLS. SSL and TLS SSL and TLS are cryptographic protocols, both provide a
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