Reco wrote: > Hi. > > On Sun, Jul 14, 2019 at 02:05:04PM -0400, Dan Ritter wrote: > > > > That's not a problem sending mail via a script; that's a problem with > > Google's view of the reputation of the mail server that you are using. > > (Which may be the machine that you are typing on, or might not.) > > > > In other words: you successfully sent mail, but Google rejected > > it because they think you are a spammer. > > No. Google rejected it because of the reason stated above. > I.e. MTA's IP does not have a valid PTR record. Not required by RFC per > se, but is considered mandatory by some (included Google).
Why do you think they have that requirement? It's entirely because IPs without PTR records are more likely to be spammers than those who do. Specfically, because it's an indication that the person running the machine didn't set it up as a server, or doesn't know what they are doing. > > Another is to build the reputation of the server you are using, > > Won't do any good. Another option is to get that PTR record for > starters. That would be part of building the reputation. -dsr-