Mail send problem

[ORSO2001]

Hi All,

I am trying to send some mails and, for some of these, I have this "error message" (not from PLC but from the mail server):

Reporting-MTA: dns; santino.mail.tiscali.it [xxx.xxx.xxx.xxx]
Received-From-MTA: dns; Unistream [xxx.xxx.xxx.xxx]
Arrival-Date: Fri, 28 Sep 2018 20:06:13 +0000


Final-recipient: rfc822; xxx.xxx@libero.it (but also xxx.xxx@gmail.com)
Action: failed
Status: 5.1.1
Diagnostic-Code: smtp;  552 This message is not RFC 2822 compliant [smtp-22.iol.local; LIB_670]
Last-attempt-Date: Fri, 28 Sep 2018 20:06:13 +0000

the mail send works with other like "tiscali" mail, also with "email" ...I don't tried others.

I  looked for this in internet...seems that is my server "tiscali" that don't forwarded the mail...but I don't understood why...if I send directly with my mail service these works...then is something coupled at the PLC request...but what?

thanks

[Guy Sela]

Hi,

I could not understand your question, the PLC sends your email but in some cases your "tiscali" server  don't forward your mail`s? 

I`m not familiar with this server, can you narrow down to when your server does not send your email`s?