Release Notes: This release adjusts the line length limit to 76 characters rather than 75 as before to be consistent with the PHP chunk_split function. It also avoids using additional line breaks after each multipart body data part. Some classes with parameters that were passed by reference incorrectly were fixed.
Release Notes: This release fixes the declaration of the localhost variable and SendMessageBody and SendMail functions, which were causing warnings under PHP 5. It also removes all uses of ereg functions, which were deprecated in PHP 5.3.
Release Notes: This revision changed the code to avoid using POSIX regular expression functions, since those are deprecated starting with PHP 5.3.
Release Notes: A bug in which other special characters in headers were not encoded when they contain non-ASCII characters was fixed.
Release Notes: This release adds support to send messages via SMTP servers that require starting the TLS cryptographic protocol after the connection is established (e.g., Hotmail).
Release Notes: Filenames of attachments are now encoded if they contain non-ASCII characters.
Release Notes: The default mailer identity was reset to an empty string. This prevents the generation of the X-Mailer header and avoids an issue with mail servers confusing messages sent by the class with spam.
Release Notes: The main class can now cache individual message parts that attach or embed files in messages. When sending personalized mailings to many recipients for whom such file parts do not change, this avoids the overhead of encoding those message parts again. The SMTP driver sub-class was enhanced to disconnect from the SMTP server after a given number of consecutive deliveries in bulk mail mode in order to avoid exceeding the limits imposed by certain SMTP servers.
Release Notes: The generation header values were improved to make them clear by avoiding using q-printable encoding on headers that do not need it.
Release Notes: The main class and the SMTP class were fixed to allow sending messages without a To: header as long as they have Cc: or Bcc: headers. The sendmail delivery class was fixed to remove a duplicate variable declaration.