Thank you for the accurate details ! When I issue the command:
nslookup mx1.adtlas.com NSPRI.ADTLAS.COM I receive that, and it seems to me correct: Server: NSPRI.ADTLAS.COM Address: 88.191.117.125#53 Name: mx1.adtlas.com Address: 88.191.117.125 As I wrote in my previous reply, my FQDN is mx1.adtlas.com and I think the "mail" prefix is not mandatory ! I may use what I want, right ? But my problem was due the missing "smtp_helo_name = mx1.adtlas.com", so I've added it in the main.cf file before to restart POSTFIX :-) Unfortunately I will hire nobody right now: I'm a 62-year old Swiss retiree which has done painfully its two innovative Web sites by learning alone by himself all pieces of the puzzle to set them up and to keep them running: PERL, JavaScript, HTML, etc. But sometimes I've to go on forums like this one to discuss with experts as you, which I thank a lot for their appreciated help... and their patience too :-) -- View this message in context: http://postfix.1071664.n5.nabble.com/Two-domains-names-under-the-same-IP-how-to-handle-this-issue-tp66655p66681.html Sent from the Postfix Users mailing list archive at Nabble.com.
