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Dear all,<br>
<br>
Recently the Gromacs mailing lists have been used for sending spam
and viruses, and thus now only plain text messages are accepted. <br>
<br>
If you have received rejected mails saying "The message's content
type was not explicitly allowed" it means that you have used in your
mail special styles or formatting (e.g. bold typeface, colors etc.).
<br>
<br>
Check your email client settings about how to send messages as plain
text, e.g. in GMail make sure to click on "Compose -> Plain
Text".
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Check also whether a formatted signature is added.<br>
<br>
Attachments are also not allowed but you could include links for
downloads.<br>
<br>
Rossen<br>
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