Sorry, totally neglected to reply. After looking into it, I can't really see a way to make it work on iOS mail sadly. I have an iCloud profile set up with a picture and everything, but no image displays, so it looks to be entire based on the users photos that they have set for contacts.
Without seeing the rest of your code, I can't confirm the issue, but I can say that I just tried testing what you gave me and it seems to have worked fine in Samung. Here's the code with the <head> included.
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Untitled Document</title>
<style>
@media only screen and (max-width: 481px) {
.hide {display:none !important; overflow: hidden; width: 0px; max-height: 0px; mso-hide: all}
.fluid {width:100% !important; height:auto !important;}
}
</style>
</head>
<body style="padding:0; margin:0">
<table border="0" cellpadding="0" cellspacing="0" class="fluid" width="100%" align="center" bgcolor="#EBEBEB">
<tbody>
<tr>
<td align="center" style="width: 650px;" class="fluid"><!--WRAPPER-->
<table border="0" cellpadding="0" cellspacing="0" style="width: 650px;" class="fluid">
<tbody>
<tr>
<td>content</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</body>
</html>
This problem plagues me pretty frequently with creatives from clients, and while I can't figure out exactly what causes it, I don't tend to see the problem happen when the email creative in question is responsive, using relative widths instead of exact widths.
Started a new discussion: iPad iOS 11 Mail App: Excessively wide margins
Your most surefire way to achieve this is by encoding the subject line your sending as UTF-8, which can be easily done using this tool:
http://www.sendblaster.com/en/utf8-email-subject-encoder
There's nothing suspicious or bad about it, they are just UTF-8 characters, same as Emoji. The hard part will be actually typing things out that way, as I honestly don't know of a good way to automatically convert bold or italic characters to their UTF-8 equivalent.
One major thing to look out for, while these work just about everywhere, some places WILL have oddities. AOL webmail for example, won't display many special characters in the preview, it will only display them when the message is opened, so the from and subject line you see above would be:
at GetitFree
Dove Samples
As always, TEST! Special characters like these don't necessarily make your message more spammy, but at least make sure you're still inboxing when incorporating these.
As far as I know, that would depend on the account your company holds with that specific service. For example, if I have a profile photo for myself on my Google account, that would be what would appear on emails people receive from me. I believe a users address book photo takes precedence in most cases, but by editing the profile information on different services for your sending email address, you should be able to specify the image you want to display there. This of course won't be available universally, as not all services have a way for you to do that.
Your suggestion to nest another table did the trick, thank you!
Started a new discussion: Possible New Method for Preventing Android Apps From Resizing Your Emails