Michael Tsai on Twitter: "@danielpunkass @smorr DreamHost has been on and off various blacklists that SpamCop uses."

Country	Code	For customers of
United States	40404	(any)
Canada	21212	(any)
United Kingdom	86444	Vodafone, Orange, 3, O2
Brazil	40404	Nextel, TIM
Haiti	40404	Digicel, Voila
Ireland	51210	Vodafone, O2
India	53000	Bharti Airtel, Videocon, Reliance
Indonesia	89887	AXIS, 3, Telkomsel, Indosat, XL Axiata
Italy	4880804	Wind
3424486444	Vodafone
» See SMS short codes for other countries

Scott Morrison ‏@smorr 30 Jul 2014

So apparently several Mail servers think email coming from DreamHost IPs are spam. Migrating automated emails to Amazon SES now.
1 retweet
Michael Tsai ‏@mjtsai 31 Jul 2014

@smorr That’s what I use, although some servers think SES is spam, too, despite their strict policies. Need a backup server.
Daniel Jalkut ‏@danielpunkass 31 Jul 2014

@mjtsai @smorr What is the specific blacklist you are getting flagged for? Do you know? I use my own Rackspace server for my automated email

‏@mjtsai

@danielpunkass @smorr DreamHost has been on and off various blacklists that SpamCop uses.

6:10 AM - 31 Jul 2014

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