MECSA CONFIDENTIAL DELIVERY [1] MECSA PHISHING AND IDENTITY THEFT [1] MECSA INTEGRITY OF MESSAGES [1] Email Security Grader IMAPS [2] POP3S [2] SMTPS [2] SMTP [2] DANE CAA SPF DKIM DMARC MTA-STS[8] STARTTLS Everywhere Mozilla Observatory SSL Labs htbridge Crypt Check security headers HSTS preload list Referrers leaked Cookies Third-party requests Third-parties contacted GeoIP (mx) Comments
posteo.de 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 78% A+ A+ A+ A Yes Yes Yes Yes Disabled No Queued B+ A+ A+ A+ A Yes No 1 0 0 Germany
mailbox.org 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 87% A A A A Yes No Yes Yes Disabled No Queued B A+ A+ A+ A Yes Partially 2 0 0 Germany google captcha
dismail.de 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 98% A+ X A+ A+ Yes Yes Yes Yes Yes Yes[8] Yes A+ A+ A+ A+ A+ Yes No 0 0 0 Germany
systemli.org 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 93% B B B B Yes Yes Yes Yes Disabled Yes Queued A+ A+ A+ A A Yes No 0 0 0 ToDo
mail.de 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 see below B B B B Yes Yes Yes Yes Disabled Testing Queued B A+ A+ B A Yes No 4 6 5 Germany Punkt 2 in der Datenschutzerklärung beachten; google captcha
tutanota.com 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 91% X X X B Yes No Yes Yes Disabled No No B A+ A+ B B Yes Leaked 2 0 0 Germany
disroot.org 4.5 / 5.0 5.0 / 5.0 5.0 / 5.0 94% A A X Timeout No No Yes Yes Disabled No No B A+ A+ A+ A Yes No 1 0 0 Netherlands google captcha
protonmail.com 4.5 / 5.0 5.0 / 5.0 5.0 / 5.0 91% X X X X No No Yes Yes Yes No Queued B A+ A+ A B Yes Leaked 2 4 2 Switzerland
riseup.net 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 91% Timeout Timeout Timeout Timeout No Yes Yes Yes disabled Testing Queued B A+ A+ Timeout A Yes No 0 0 0 United States
gmail.com 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 88% C C C C No No Yes Yes Disabled Testing Yes A- A A+ C A Yes Leaked 2 5 3 United States
mailfence.com 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 91% A A A A No No Yes Yes Yes No No D+ A+ A+ A+ F Yes Error Error Error Error France
kolabnow.com 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 85% Timeout X X A Yes Yes Yes Yes Yes No No B+ A+ A+ A+ A No No 3 1 1 Switzerland
lavabit.com 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 86% B B B Timeout Yes No Yes Yes Yes No Queued F A A C F No Leaked 0 0 0 United States
mailjunky.de 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 77% X X X Timeout No No Yes Yes Disabled No Queued F B A+ C C No Leaked 4 13 7 Germany
directbox.com 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 91% C C F F Yes No Yes Yes Disabled No No B+ A A+ A A No Leaked 1 0 0 Germany
netcologne.de 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 90% A A X A No No Yes Yes Yes No No C A A+ C B No Leaked 36 80 37 Germany
fastmail.com 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 92% C C C Timeout No No Yes Yes Disabled No No A+ A+ A C A Yes Leaked 4 4 2 United States google captcha
aol.com 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 58% C C X F No No Yes Yes Yes No No D A- A C A No Partially 136 346 103 United States
5x2.de 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 91% C C C F No Yes Yes Yes Yes No No F A- A B F No Leaked 8 4 2 Russian Federation
mail.yandex.ru 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 91% F F F Timeout No Yes Yes Yes Disabled No Yes B- A A+ F B No Leaked 9 45 2 Russian Federation
hushmail.com 4.0 / 5.0 3.5 / 5.0 3.5 / 5.0 91% B B B Timeout No No Yes Yes No No No D A A+ B B No Leaked 2 0 0 United States
autistici.org 3.5 / 5.0 4.5 / 5.0 3.5 / 5.0 93% X B B B No No Yes Yes No No No C A A B B No Leaked 0 0 0 France
runbox.com 4.0 / 5.0 3.5 / 5.0 3.5 / 5.0 93% C C C C No No Yes Yes No No Queued B A+ A+ C A No Leaked 1 0 0 Norway
cock.li 4.0 / 5.0 3.5 / 5.0 3.5 / 5.0 87% B B F F No No Yes Yes No No No D A+ A+ B D Yes Leaked 2 0 0 Romania
startmail.com 4.0 / 5.0 3.5 / 5.0 3.5 / 5.0 91% F X X C No No Yes Yes No No No F A+ A+ B F No Leaked 1 0 0 Netherlands
outlook.com 3.0 / 5.0 4.5 / 5.0 3.5 / 5.0 78% C C X M No No Yes Yes Disabled No Yes D A A+ C C No Leaked 3 42 5 United States
danwin1210.me 0.0 / 5.0 4.0 / 5.0 3.5 / 5.0 78% B B B Timeout No No Yes Yes Yes No No D- A+ A+ B A Yes Partially 1 0 0 France
gmx.de 5.0 / 5.0 3.5 / 5.0 2.0 / 5.0 90% C C C C Yes No Yes No No No No F A+ A+ C B Yes Partially 60 227 61 Germany
web.de 5.0 / 5.0 3.5 / 5.0 2.0 / 5.0 90% C C X C Yes No Yes No No Testing No F A+ A+ C B Yes Partially 55 210 57 Germany
systemausfall.org 4.0 / 5.0 2.5 / 5.0 3.5 / 5.0 69% A A X No TLS No Yes No Yes No No Queued B A+ A+ A+ A No No 1 0 0 Germany
arcor.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 83% F X X Timeout No No Yes No No No No F A- A- C D No Leaked 79 296 91 Netherlands
skymail.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 57% ToDo ToDo ToDo ToDo No No Yes No No No No F A A+ B F No Leaked 0 3 2 Germany
ok.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 89% F F B B No No Yes No No No No F B B C F No Leaked 37 208 49 Germany
firemail.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 57% ToDo ToDo ToDo ToDo No No Yes No No No No F F B B F No Leaked 4 13 8 United States Advertising
netcourrier.com 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 91% B B B F No No Yes No No No No D B D F D No Leaked 1 19 1 France
gandi.net 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 95% C C C B No No Yes No No No No B- A A C B No Leaked 2 0 0 France
eclipso.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 62% B B B Timeout No No Yes No No No No C+ A+ A C B No Leaked 2 0 0 Germany google captcha, Advertising
freenet.de 5.0 / 5.0 0.0 / 5.0 2.0 / 5.0 66% B B B Timeout No Yes No No No No No C A+ A+ C A+ No No 134 543 149 Germany
ownbay.net 4.0 / 5.0 0.0 / 5.0 3.0 / 5.0 73% A A A A No No Syntax error No Syntax error No No B A+ A+ A A No Partially 2 5 5 Germany google captcha
t-online.de 4.0 / 5.0 0.0 / 5.0 2.0 / 5.0 66% C C M C No No No No No No No F A A- C F No Leaked 116 238 91 Germany
emailn.de 4.0 / 5.0 0.0 / 5.0 2.0 / 5.0 62% X X X F No No Yes No No No No D A A C D No Leaked 5 35 12 Germany google captcha, Advertising
online.de 4.0 / 5.0 0.0 / 5.0 2.0 / 5.0 50% C C C C No No No No No No No F A A B F No Leaked 105 130 63 Germany 1und1.de
so36.net ToDo ToDo ToDo 71% X A A A Yes No No ToDo No No No D+ A+ A+ A D No Leaked 0 0 0 Germany
boum.org ToDo ToDo ToDo 73% A A A Timeout No No No ToDo No No No D+ A+ A Timeout D No Leaked 0 0 0 United States
immerda.ch ToDo ToDo ToDo 93% A A F Timeout No No Yes ToDo No No No B+ A A+ A A No Leaked 0 0 0 Switzerland
tchncs.de ToDo ToDo ToDo A M Timeout No TLS No No Yes ToDo No No No B A+ A+ A+ A No Partially 3 0 0 Germany
hosted.mailcow.de ToDo ToDo ToDo 93% B B B C Yes No Yes ToDo No No No B A+ A C B No No 1 0 0 Germany
icloud.com ToDo ToDo ToDo 84% C X X ToDo No No Yes ToDo No No Yes C+ A- A+ B B No Leaked 3 50 4 United States
zoho.eu ToDo ToDo ToDo 86% F F F F No No Yes ToDo No No No F A+ A+ B D No Leaked 13 22 11 Switzerland
zoho.com 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 82% F F F F No No Yes No No No No F A+ A+ C D No Leaked 18 42 15 United States
mail.com ToDo ToDo ToDo 90% C C C Timeout No No Yes ToDo No Testing No D- A+ A+ C D Yes Leaked 51 113 31 United States
mail.lilo.org ToDo ToDo ToDo 71% F X X C No No No ToDo No No No D+ A+ A C D No Leaked 2 4 0 France
vmail.me ToDo ToDo ToDo 87% B B B B No No Yes ToDo No No No D A+ A+ B D No Leaked 2 0 0 France
aikq.de ToDo ToDo ToDo 66% B B B B No No Syntax error ToDo No No No D A+ A+ C D No Leaked 1 7 3 Germany
virginmedia.com ToDo ToDo ToDo 66% C C C F No No Yes ToDo Yes No No F A B B D No Leaked 33 64 32 Netherlands
pobox.com ToDo ToDo ToDo 91% B B B Timeout No No Yes ToDo No No No B+ A A+ B A No Leaked 4 3 2 United States
strato.de ToDo ToDo ToDo 66% C C C F No No No ToDo No No No F A+ A+ C F No Leaked 14 15 10 Germany
mail.ru ToDo ToDo ToDo 78% Timeout F F Timeout No No Yes ToDo Yes No No C+ A+ A C A No Leaked 38 98 39 Russian Federation
countermail.com ToDo ToDo ToDo 96% F X F B No No Yes ToDo No No No C+ C B B D Yes Leaked 0 0 0 Sweden
biomail.de ToDo ToDo ToDo 60% A A ToDo ToDo No No No ToDo No No No F A A C F No Leaked 0 0 0 Germany
greensta.de ToDo ToDo ToDo 91% B B F B No No No ToDo No No No F A A+ B F No Leaked 6 2 1 Germany
yahoo.com ToDo ToDo ToDo 91% C C C Timeout No No Yes ToDo Yes Testing Yes F A A+ C D No Partially 13 133 15 United States
unseen.is ToDo ToDo ToDo 93% C C F F No No Yes ToDo No No No C+ A+ A+ A+ D Yes Leaked 0 0 0 Iceland
vodafone.de ToDo ToDo ToDo 83% F Timeout Timeout F No No Yes ToDo No No No F B C C D No Leaked 36 90 40 Netherlands
cryptix.de ToDo ToDo ToDo 68% M M M C No No No ToDo No No No F C A B D No Leaked 3 0 0 Germany
aktivix.org ToDo ToDo ToDo 89% F F X Timeout No No Yes ToDo No No No F A+ A+ A+ F No Leaked 2 0 0 United States
neomailbox.com ToDo ToDo ToDo 79% C F F Timeout No No Yes ToDo No No No F A B A F No Leaked 0 0 0 Switzerland
goneo.de ToDo ToDo ToDo 66% F F C C No No No ToDo No No No D A+ A C D No Leaked 14 16 10 Germany
bluewin.ch ToDo ToDo ToDo 91% F F C C No No Yes ToDo No No No F A A+ B F No Leaked 43 161 44 Switzerland
artikel-140.nl ToDo ToDo ToDo 86% F X A No TLS No No Yes ToDo Yes No No D+ A+ A+ A+ D No Leaked 2 0 0 Netherlands
free.de ToDo ToDo ToDo 93% F F A No TLS No No No ToDo No No No F B F F F No Leaked 0 0 0 Germany greylister does not support TLS
inbox.com ToDo ToDo ToDo 78% C X F No TLS No No Yes ToDo No No No F B A C F No Leaked 11 9 5 United States
one.com ToDo ToDo ToDo 91% F F F F No No Yes ToDo No No No C- A+ A+ B D No Leaked 21 52 20 Denmark
safe-mail.net 3.0 /5.0 3.0 / 5.0 1.0 / 5.0 61% ? ? ? No TLS No No Syntax Error ToDo No No No F B A F F No Leaked 0 0 0 Israel
islandnet.com ToDo ToDo ToDo 58% F F F Timeout No No No ToDo No No No F B A F F No Leaked 3 4 3 Canada
cox.net ToDo ToDo ToDo 90% F F F No TLS No No No ToDo No No No F No HTTPS B No HTTPS D No Leaked 180 350 112 United States
teknik.io ToDo ToDo ToDo 86% F F F F No No Yes ToDo No No No A+ B A B A Yes Leaked 2 0 0 Netherlands
mc-free.com 3.0 / 5.0 0.0 / 5.0 1.0 / 5.0 61% ToDo ToDo ToDo ToDo ToDo No No No No No No F A A+ B F No Leaked 5 9 5 Germany
simbamail.de 3.0 / 5.0 0.0 / 5.0 1.0 / 5.0 ToDo ToDo ToDo ToDo No No No No No No No F A A+ B F No Leaked 1 8 7 Germany
rediffmail.com 3.0 / 5.0 4.5 / 5.0 3.5 / 5.0 78% ToDo ToDo ToDo ToDo No No Yes Yes Monitoring No No F F ToDo Timeout E No Leaked 5 8 5 India
anpa.de 3.0 / 5.0 3.0 / 5.0 1.0 / 5.0 48% B X B No TLS No No Yes No No No No F C C F F No Leaked 4 19 11 Netherlands Hostname Mismatch
netcup.net/de ToDo ToDo ToDo 64% F F F F No No Yes ToDo No No No F A A B F No Leaked 2 0 0 Germany

To be clear: This list does not want to make any statement about the quality of the email providers or their services. It takes more than just encryption, to provide a secure and reliable email service.

This is a manually created list which might be outdated in some places. In addition, test results may be wrong for various reasons. Please take into account the fact that email providers have to be very cautious when modifying there servers, e.g. to not lock out old clients and to avoid problems when receiving or sending emails.

So, please don't take this list too seriously, and/or try to ...

... understand the tests results and the implications they might have:


Please feel free to send links, corrections or extra infos to: a2e7ff3a@dismail.de (email/xmpp)

Last update: 2018-10-11

Changes:


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