Google Apps Script to send an email from a server that does not have sendmail capabilities. Assumes you're grabbing the text of the email from an external URL as JSON, and including a photo as an attachment

Emailer.gs

// URL to send looks like scriptcontent.google.com/etc/?key=KEY&photo=PHOTO_URL&to=EMAIL_ADDR&subj=SUBJECT&body=URl_FOR_TEXT

function doGet(request) {
  //requiring a key adds security so not just anyone can send mail
  if (request.parameters.key == 'KEY') {
   // Get caption from system, make it the body of the email
    var body = UrlFetchApp.fetch(request.parameters.body);
    //You can lose this if you're not grabbing JSON
    var content = JSON.parse(body);
    // Use "___LB___" in the text to indicate where you want line breaks to be, {B}where you want things bolded{/B}
    var textContent = content.replace(/___LB___/g,'\n').replace(/\{(\/?)B\}/g,'');
    var htmlContent = content.replace(/___LB___/g,'<br />').replace(/\{(\/?)B\}/g,'<$1strong>');
    var photo = new Array();
    photo.push(UrlFetchApp.fetch(request.parameters.photo));
    MailApp.sendEmail(request.parameters.to, request.parameters.subj+body.subj, textContent, {htmlBody:htmlContent,attachments:photo});
  }
 }