The standard doesn’t define a maximum length, leaving implementation up to browsers and mail clients (See IETF RFC 2368). Microsoft products do have set limits: IE GET limit is 2,083 http://support.microsoft.com/kb/208427 Outlook express: 456 characters http://support.microsoft.com/kb/q182985/ Other browsers are likely to work up to lengths beyond that of a reasonable email body. The iPhone doesn’t … Read more
There does not appear to be any OS agnostic method of doing this in Java as not all OSes provide a standard way to launch the default e-mail application with more than the basic fields for a new email. On Windows, it is possible to use a JNI interface to MAPI, which will provide more … Read more
Let’s start with a simple example. Let’s say you have an email list, that is going to send out the following RFC2822 content. From: <[email protected]> To: <[email protected]> Subject: Super simple email Reply-To: <[email protected]> This is a very simple body. Now, let’s say you are going to send it from a mailing list, that implements VERP … Read more
I’ve done a more recent test at Litmus, with data URIs for inline <img> elements and css background images. These desktop clients do show data URIs: Apple Mail 5 Apple Mail 6 Lotus Notes 8 Outlook 2003 Thunderbird 3.0 Thunderbird latest These mobile clients do show data URIs: Android 2.3 Android 4.0 BlackBerry 5 OS … Read more
SMTP protocol: smtps (port 465) v. msa (port 587) Ports 465 and 587 are intended for email client to email server communication – sending out email using SMTP protocol. Port 465 is for smtps SSL encryption is started automatically before any SMTP level communication. Port 587 is for msa It is almost like standard SMTP … Read more