Im replying on list for visibility. The issue you’re seeing is directly related to SMTP smuggling which was discussed on list ad nauseam about a month ago. The servers at shaw are configured to reject non-RFC bare linefeeds. Can you elaborate on why you’re sending them as they are not allowed.
> On Feb 1, 2024, at 5:52 PM, Hugh E Cruickshank via mailop <mailop@mailop.org> > wrote: > > Hi All: > > We are experiencing a problem with mail delivery to Shaw.ca. Since > January 18th messages have been bounced with: 552 5.2.0 Message contains > bare CR and is violating 822.bis section 2.3. We have tried to contact > postmas...@shaw.ca but have not received any response yet. I was > wondering if there was anyone on this list who could provide a support > contact at shaw.ca that might be able assist us with identifying and > correcting this issue. > > Any suggestions would be greatly appreciated. > > Regards, Hugh > > -- > Hugh E Cruickshank, Forward Software, www.forward-software.com > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop