According to page 32 of http://www.authorize.net/content/dam/authorize/documents/merchant_guide.pdf we can use HTML <br /> in our headers and footers.
Sent in x_footer_email_receipt:
"Your trip begins Thursday, May 18, 2017. Please call us at (800) 6CANOE2 or email us at canoes@ShenandoahRiver.com if you have any questions. Enjoy your trip!<br /><br />Shenandoah River Outfitters<br />6502 South Page Valley Rd, Luray VA 22835"
Received in email message (forwarded from unknown client to my Thunderbird client):
"Your trip begins Monday, May 15, 2017. Please call us at (800) 6CANOE2 or email us at <a class="moz-txt-link-abbreviated" href="mailto:canoes@ShenandoahRiver.com">canoes@ShenandoahRiver.com</a> if you have any questions. Enjoy your trip!Shenandoah River Outfitters6502 South Page Valley Rd, Luray VA 22835"
All other HTML tags from Authorize appear in the email and it formats properly. Only the HTML tags in my custom footer are stripped.
Is there a way to embed line breaks in x_footer_email_receipt (SIM)? Thank you.