Re: [mailop] New mail server and Outlook

2020-10-09 Thread Marco Guillen Barrionuevo via mailop
Sorry sent it before I was done: RCPT commands This is the number of RCPT commands sent by the IP during the time period in question. RCPT commands are part of the SMTP protocol used to send mail, specifically that which specifies one's intent to send mail to

Re: [mailop] New mail server and Outlook

2020-10-09 Thread Marco Guillen Barrionuevo via mailop
Did you check the the RCPT Commands and Data Commands? Seems like a reputation throttle On Thu, Oct 8, 2020 at 10:06 PM Mark Fletcher via mailop wrote: > Hi All, > > I'm bringing up a new mail server for groups.io, 66.175.222.108. I've > been slowly sending email through it for the past two week

[mailop] New mail server and Outlook

2020-10-08 Thread Mark Fletcher via mailop
Hi All, I'm bringing up a new mail server for groups.io, 66.175.222.108. I've been slowly sending email through it for the past two weeks or so. But it's being throttled by Outlook (sample: 451 4.7.500 Server busy. Please try again later from [66.175.222.108]. (S77719) [ DM3NAM05FT012.eop-nam05.pr