Differences Between S60 3rd Edition FP1 & FP2 Platform

Platform	S60 3rd Edition FP1	S60 3rd Edition FP2
Contacts	More steps to access in SIM card. Need to copy new contact from phone to SIM card.	Easier to access in SIM card. Can create new contact in SIM card directly.
Wi-Fi	DHCP server is optional since static or dynamic ip address is supported. Does not require SIM card for internet access.	DHCP server is optional since static or dynamic ip address is supported. Does not require SIM card for internet access. Can access internet in flight mode.
Active Standby Screen	Less customisable. Clock shown in selected screens only.	More customisable. Clock shown in selected screens only.
Nokia Map	Support Drive or Walk mode. Can support additional free maps from other countries.	Support Drive or Walk mode. Can support additional free maps from other countries.
E-mail	Can create account in phone memory or micro SD card. Does not require SIM card to connect to POP3 account with Wi-Fi. Does not require to save password for POP3 account. Can delete e-mails from POP3 server.	Can create account in phone memory or micro SD card. Does not require SIM card to connect to POP3 account with Wi-Fi. Does not require to save password for POP3 account. Can delete e-mails from POP3 server.
Browser	Support Flash Lite 2.0. Does not require additional step to press Ok to continue in form field. Yahoo webmail is not supported.	Support Flash Lite 3.0. Does not require additional step to press Ok to continue in form field. Yahoo webmail is supported but file download "st" always appears which is unnecessary

Differences Between Nokia S40 & S60 Platform

After using the non-smartphone Nokia 6260 Slide for a while, I found the following differences between the latest S40 6th Edition and my previous smartphone running Symbian OS 9.2 S60 Release 3.1 (S60 3rd Edition Feature Pack 1).

Platform	S60 3rd Edition FP1	S40 6th Edition
Contacts	More steps to access in SIM card. Need to copy new contact from phone to SIM card.	Easier to access in SIM card. Can create new contact in SIM card directly.
Wi-Fi	DHCP server is optional since static or dynamic ip address is supported. Does not require SIM card for internet access	DHCP server is required since only dynamic ip address is supported. Does not require SIM card for internet access. Cannot access internet in flight mode.
Active Standby Screen	Less customisable. Clock shown in selected screens only.	More customisable to support General indicators, Notifications etc, Clock shown in all screens.
Nokia Map	Support Drive or Walk mode. Can support additional free maps from other countries.	Support Drive mode only. Does not support additional free maps from other countries.
E-mail	Can create account in phone memory or micro SD card. Does not require SIM card to connect to POP3 account with Wi-Fi. Does not require to save password for POP3 account. Can delete e-mails from POP3 server.	Can create account in phone memory only. Requires SIM card to connect to POP3 account with Wi-Fi. Need to save password for POP3 account. Cannot delete e-mails from POP3 server.
Browser	Support Flash Lite 2.0. Does not require additional step to press Ok to continue in form field. Yahoo webmail is not supported.	Support Flash Lite 3.0. Requires additional step to press Ok to continue in form field. Yahoo webmail is supported.

Testing your mail server

You can connect to your mail server SMTP service on TCP port 25 using a Telnet or Netcat client and send email to your own account with the following code, where "IP" is the IP address of the server:

telnet IP 25

helo

mail from

rcpt to

enter message here, followed by a full stop on a new line

.

Also, check whether your email server divulges your internal users by supporting the EXPN and VRFY commands (for example, VRFY administrator -> admin@company.com):

' telnet 25

help - does it show EXPN / VRFY to be supported?

EXPN administrator

VRFY admin'

Finally, check if it's possible to send a spoofed email through the email server. For example, SMTP server for domain "company.com" receives an external email from user@company.com. Does your email server drop this email? It should do.

False Sense of Security in SMTP Authentication

Lately, I have been receiving spam e-mails sent to myself using my own e-mail address. I did a simple test using Microsoft Outlook Express. With SMTP authentication disabled, I sent an e-mail to myself and to another yahoo account. I managed to receive the e-mail to myself but not the yahoo account. But with SMTP authentication enabled, both e-mails were received.

Initially, I thought the setting of SMTP authentication on my hosted e-mail server has changed. So, I called my e-mail service provider. After a long conversation, it is possible for this to happen. Any person can spoof an e-mail address and send e-mails to the same e-mail address without SMTP authentication. But, if that person tries to send e-mail from a domain to a different domain e-mail address, it will not work. According to support, SMTP authentication only prevents the abuse of the e-mail server from sending spam e-mails to others but not to yourself. You can look at the header of the e-mail address to confirm the ip address of the sender.