Topwiz Software

EmailSMTP

This program sends E-Mail using the SMTP protocol. The SMTP object inherits from my Winsock object. It supports HTML formatted messages and attachments. Attachments can be disk files or blob variables.

Images embedded within HTML messages are also supported. Just use src="cid:attach.filename" in the IMG tag where filename is the attachment it refers to.

EmailSMTP has the capability to use GMail as the SMTP server. It uses Cryptlib, an open source library to communicate with the server using TLS encryption.

It also has optional logging to Jaguar.log so is suitable for deployment to EAServer. It also has the ability to log messages to the system Event log.

Please note that the Win API function CryptBinaryToString used to base64 encode non-text attachments requires Win XP, Win Server 2003 or later.

Also included is a sample .reg file you can use to force FindMimeFromData to recognize an oddball file extension as plain ANSI text. Just edit the file and change all occurrences of 'ext' to your file extension. If a text file is not recognized as text, it will be sent base64 encoded. This won't hurt anything but it will make the file 33% larger.

Click here to download the PowerBuilder sample: EMAILSMTP.ZIP

Win API Functions used:

CreateFile
CloseHandle
ReadFile
UuidCreate
UuidToString
RpcStringFree
RtlMoveMemory
FindMimeFromData
GetTimeZoneInformation

Plus those in in the Winsock object

——— Last updated 07/06/2011 ———