I've been trying to work through sending a html email from mailx on a linux server.Few Notes:I have to specify a smtp server so therefore I cannot use sendmail(This is not something I can change on my end) I cannot install 3rd party things such as mutt. I will have to usemail or mailxSince my mail/x version is heirloom I do not have the --append or -a (attach header options)not sure if this helps at all but my linux distro is 7.3 (Maipo)What I've seen in most posts on stackoverflow for my case:mailx -v -S smtp=SERVER -s $(echo -e This is the subject\nContent-Type: text/html) -r FROM TO < htmlmail.txtThis just returns a plain text email in my case.So here is what I have tried so far:Try 1:I saw in a post to add Content-Disposition: inline.mailx -v -S smtp=SERVER -s $(echo -e This is the subject v1\nContent-Type: text/html\nMIME-Version: 1.0\nContent-Disposition: inline) -r FROM TO < htmlmail.txtThis ends up sending an html email but since the headers are included inline with the body it outputs as such:Content-Disposition: inline Message-ID:  User-Agent: Heirloom  mailx 12.5 7/5/10 MIME-Version: 1.0 Content-Type: text/plain;  charset=us-ascii Content-Transfer-Encoding: 7bit Hello WorldTry 2:So I do not want the headers printed out in the body. So I tried to remove the Content-Disposition: inlinemailx -v -S smtp=SERVER -s $(echo -e This is the subject v2\nContent-Type: text/html\nMIME-Version: 1.0) -r FROM TO < htmlmail.txtThis ends up sending a plain test email as such:<html>  <b>Hello World</b>   </html>Try 3:Tried flip flopping content-type and mime-versionmailx -v -S SERVER -s $(echo -e This is the subject v3\nMIME-Version: 1.0\nContent-Type: text/html) -r FROM TO < htmlmail.txtI ended up receiving no email from this codeTry 4:I saw online to try another header to help find where the issue lies. So I added the header option to set the mail priority.mailx -v -S smtp=SERVER -s $(echo -e This is a subject v4\nContent-Type: text/html\nX-Priority: 1 (Highest)) -r FROM TO < htmlmail.txtThis ended up sending a high priority email but all in plain text.Try 5:I added on the MIME header to the previous trymailx -v -S smtp=SERVER -s $(echo -e This is a subject v5\nMIME-Version: 1.0\nContent-Type: text/html\nX-Priority: 1 (Highest)) -r FROM TO < htmlmail.txtThis ended up sending an email with headers in the body and the priority not set to high...weirdX-Priority: 1 (Highest) Message-ID:  User-Agent: Heirloom mailx  12.5 7/5/10 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hello WorldAfter all of this, I've tried many other adaptations of the above tries but they led to no new output.So any suggestions or ideas are gladly accepted! Please keep in mind my constraints listed above...I know they limit my options but that's out of my control.thanks for your time!
HTML email from heirloom mailx on linux
linux;html;mailx;mail command