There are 3 main email protocols used : POP3 and IMAP for mail retrieving and SMTP for sending emails.
Acronyms :
POP (Post Office Protocol)
IMAP (Internet Message access protocol)
SMTP (Simple mail transfer protocol)
POP3 downloads the emails from the server (and if not specified to keep a copy it also deletes the emails) - you have to make rules to filter the email on every client individually and if you lose the email client database you lose all your filters and emails.
Pop3 is good if you have a low email quota and you like your privacy (because as soon as an email is read is deleted from the server)
IMAP synchronizes you folders and email from the server to you mail client and does not delete the messages unless you delete them.
Main advantage to imap is the it syncs your emails,folders etc the same way on any device.
POP3 : 110 and secure POP3 with SSL/TSL 995
IMAP : 143 and secure IMAP with SSL/TSL 993
SMTP : 25 and secure SMTL with SSL/TSL 465
SMTP port is 25 and is usually blocked by the ISP to prevent spam by infected users.
Showing posts with label Email. Show all posts
Showing posts with label Email. Show all posts
Monday, June 8, 2015
Saturday, March 28, 2015
How to configure a dns and an email server on windows 7
I used Simple DNS Plus and Quick ‘n Easy Mail Server - note that both are not free software but you can try them in trial mode.
You will also need and EML file viewer because the emails are saved as .eml files.
Get FREE EML File Viewer from here
They are very strait forward to configure.
In Simple DNS Plus - Select Records and add a Primary zome.
Then add in your zone an MX-record and make some inquiry to see if everything is ok.
To check if your mail server dns settings are good, open a cmd and make an inquiry :
To check local open port on your system/server use CurrPorts if you want a Gui or netstat
For dns you have to open port 53
For email you have to open ports : 25,110
You have to port forward ports 53, 25, 110 if you have a router.
You can use this site to check if your ports are open : http://tagclouds.ro/openports.php
Additional information :
To clear dns cash in windows in cmd type : ipconfig /flushdns
To see in browser new changes made to dns change your dns to 8.8.8.8 ( google dns)
You will also need and EML file viewer because the emails are saved as .eml files.
Get FREE EML File Viewer from here
They are very strait forward to configure.
In Simple DNS Plus - Select Records and add a Primary zome.
Then add in your zone an MX-record and make some inquiry to see if everything is ok.
To check if your mail server dns settings are good, open a cmd and make an inquiry :
nslookup -q=mx mydomain.com(uses your isp or local dns server to resolve)
nslookup -q=mx mydomain.com 8.8.8.8
(using specified Google dns server 8.8.8.8 to interrogate for our domain - I recommend this as it is almost instant update)
To check local open port on your system/server use CurrPorts if you want a Gui or netstat
For dns you have to open port 53
For email you have to open ports : 25,110
You have to port forward ports 53, 25, 110 if you have a router.
You can use this site to check if your ports are open : http://tagclouds.ro/openports.php
Additional information :
To clear dns cash in windows in cmd type : ipconfig /flushdns
To see in browser new changes made to dns change your dns to 8.8.8.8 ( google dns)
Subscribe to:
Posts (Atom)