Best Temp Pass Autoresponder?

[Ralph DiMola]

I spoof email "from" address all the time(legitimately) using LC server
using on-rev account. When testing I found out a few things
1) you must put "mailFrom:" in the email internet header. Example "Mailfrom:
xxxxx at yyyyy.on-rev.com" This is not seen by email clients. They see the
"From" but "mailFrom" will be in the header.
  a) xxxxx at yyyyy.on-rev.com must be a valid email address
  b) yyyyy.on-rev.com must have valid ssl certificate.
2) setup SPF, DKIM, and DMARC DNS Records. This can be done via cPanel. SPF
is essential DKIM and DMARK increases your deliverability. 

Ralph DiMola
IT Director
Evergreen Information Services
rdimola at evergreeninfo.net