Hello Stephen, OK this is the "slow down" I talked about because you send too much/fast but the behavior you are describing "marked as spam" is not what servers use to do when receiving "too many" mails from a source and this is why this temporary mail rejection error is for, gently asking the sender to retry slower.
regards. SD> Dod: I don't know much about SPF checks, but we have identified SD> one of the errors as 'too many concurrent connections', and this is one that I'm trying to fix. SD> Stephen Dickason SD> Senior Developer - Managed Services SD> Email: sdicka...@elcb.co.za SD> ELCB Information Services (Pty) Ltd SD> Customer Service Email e...@elcb.co.za * www.elcb.co.za SD> E A S T L O N D O N SD> Tel: +27(43) 704 0700 SD> Fax: +27(43) 704 0701 SD> J O H A N N E S B U R G SD> Tel: +27(11) 879 6179 SD> Fax: +27(11) 454 0384 SD> P O R T E L I Z A B E T H SD> Tel: +27(41) 373 0529 SD> Fax: +27(86) 650 0135 SD> Disclaimer SD> -----Original Message----- SD> From: TWSocket [mailto:twsocket-boun...@lists.elists.org] On Behalf Of Dod SD> Sent: 08 January 2016 19:30 SD> To: ICS support mailing SD> Subject: Re: [twsocket] SMTP - relay or MTA example SD> I may also have a question, you say marked as SPAM because you SD> send mails too fast, this is an unsusual behavior, because SD> a server "flooded" will reject yor e-mail or block your e-mail SD> with some 4.2.x "slow down" temporary error. SD> Are you sure you are not impacted by a SPF check ? mailto:do...@yahoo.com -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be