MECSA CONFIDENTIAL DELIVERY [1] MECSA PHISHING AND IDENTITY THEFT [1] MECSA INTEGRITY OF MESSAGES [1] IMAPS [3] POP3S [3] SMTPS [3] SMTP [3] DANE STARTTLS Everywhere [5] MTA-STS[6] DMARC SPF [8] DKIM MFA[10] Mozilla Observatory SSL Labs htbridge Crypt Check security headers HSTS preload list CAA Referrers leaked Cookies Third-party requests Third-parties contacted GeoIP (mx) Comments
mailbox.org 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 84 (A+) 84 (A+) 84 (A) 84 (A) Yes Yes Testing Disabled Softfail Yes Yes A+ A+ A+ A+ A Yes Yes Partially 3 0 0 Germany google captcha
posteo.de 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 81 (A+) 81 (A+) 81 (A+) 81 (A) Yes Queued Testing Disabled Softfail Yes Yes B+ A+ A+ A+ A Yes Yes No 1 0 0 Germany
dismail.de 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 96 (A+) X 96 (A+) 84 (A+) Yes Yes Yes Reject Reject Yes Yes A+ A+ A+ A+ A+ Yes Yes No 0 0 0 Germany
systemli.org 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 84 (A) 84 (A) 84 (A) 84 (A) Yes Yes Yes Report only Softfail Yes No A+ A+ A+ A A Yes Yes No 0 0 0 Saint Kitts and Nevis
snopyta.org 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 96 (A+) 96 (A+) 90 (A) 84 (A) Yes Queued Yes Quarantine Reject Yes ToDo A+ A+ A+ A+ A+ Yes Yes No 0 0 0 Finland
disroot.org 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 84 (A) 84 (A) X Timeout Yes No Testing Report only Reject Yes Yes B A+ A+ A+ A Yes No No 1 0 0 Netherlands
riseup.net 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 84 (A) 84 (A) Timeout Timeout Yes No Testing Disabled Reject Yes No A+ A+ A+ A A Yes Yes Leaked 0 0 0 United States
mail.de 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 69 (B) 69 (B) 69 (B) 69 (B) Yes Yes Yes Report only Softfail Yes Yes B A+ A+ B A Yes Yes No 0 0 0 Germany Punkt 2 in der Datenschutzerklärung beachten; google captcha
protonmail.com 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 X X X 84 (A) Yes Yes Yes Quarantine Softfail Yes Yes B A+ A+ A+ B Yes Yes Partially 2 1 1 Switzerland
tutanota.com 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 X X X 64 (B) Yes Yes No Disabled Reject Yes Yes A+ A+ A+ A+ A Yes No No 0 0 0 Germany
gmail.com 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 53 (C) 53 (C) 53 (C) 53 (C) No Yes Testing Report only Softfail Yes Yes A- A A+ C A Yes No Leaked 2 5 3 United States
mailfence.com 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 84 (A) 84 (A) 84 (A) 84 (A+) No No Yes Quarantine Reject Yes Yes B+ A+ A+ A+ A Yes No No 1 0 0 France
kolabnow.com 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 Timeout X X A Yes No No Quarantine Reject Yes ToDo B+ A+ A+ A+ A No Yes No 3 1 1 Switzerland
lavabit.com 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 69 (B) 69 (B) 69 (B) Timeout Yes Queued No Reject Reject Yes ToDo F A A C F No No Leaked 0 0 0 United States
systemausfall.org 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 84 (A) 84 (A) X ? No Yes Yes No Softfail Yes ToDo B A+ A+ A+ A No Yes No 1 0 0 Germany
mailjunky.de 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 X X X Timeout No Queued Yes Report only Softfail Yes ToDo B A+ A+ A+ A Yes Yes Leaked 4 13 7 Germany
vivaldi.net 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 69 (B) Timeout 53 (F) 53 (F) No Queued No Reject Reject Yes No C- A+ A C C Yes Yes Leaked 4 2 2 Iceland
directbox.com 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 68 (C) 68 (C) 84 (F) 84 (F) Yes No No Report only Reject Yes ToDo B+ A A+ A A No No Leaked 1 0 0 Germany
netcologne.de 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 84 (A) 84 (A) X 84 (A) No No No Quarantine Softfail Yes ToDo C A A+ C B No No Leaked 36 80 37 Germany
fastmail.com 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 53 (C) 53 (C) 53 (C) Timeout No No No Report only Softfail Yes Yes A+ A+ A C A Yes No Leaked 4 4 2 United States google captcha
aol.com 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 53 (C) 53 (C) X F No Yes No Reject Softfail Yes Yes D A- A C A No No Partially 136 346 103 United States
5x2.de 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 53 (C) X 53 (C) 53 (F) No No No Quarantine Reject Yes ToDo F A- A B F No Yes Leaked 8 4 2 Russian Federation
icloud.com 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 53 (C) X X ToDo No Yes No Quarantine Softfail Yes ToDo C+ A- A+ B B No No Leaked 3 50 4 United States
outlook.com 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 53 (C) 53 (C) X 53 (C) No Yes No Report only Reject Yes Yes D A A+ C C No No Leaked 3 42 5 United States
web.de 5.0 / 5.0 4.5 / 5.0 4.0 / 5.0 53 (C) 53 (C) X 53 (C) Yes Queued Testing No Reject No No F A+ A+ C B Yes No Partially 55 210 57 Germany
gmx.de 5.0 / 5.0 4.5 / 5.0 4.0 / 5.0 53 (C) 53 (C) 53 (C) 53 (C) Yes No No No Reject No No F A+ A+ C B Yes No Partially 60 227 61 Germany
mail.yandex.ru 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 41 (F) 41 (F) 53 (C) Timeout No Yes No Report only Softfail Yes Yes B- A A+ F B No Yes Leaked 9 45 2 Russian Federation
hushmail.com 4.0 / 5.0 3.5 / 5.0 3.5 / 5.0 69 (B) 69 (B) 69 (B) Timeout No No No Quarantine Reject Yes Yes D A A+ B B No No Leaked 2 0 0 United States
autistici.org 3.5 / 5.0 4.5 / 5.0 3.5 / 5.0 X 69 (B) 69 (B) 69 (B) No No No No Reject Yes ToDo C A A B B No No Leaked 0 0 0 France
runbox.com 4.0 / 5.0 3.5 / 5.0 3.5 / 5.0 68 (C) 68 (C) 68 (C) 68 (C) No Queued No Report only Reject Yes Yes B A+ A+ C A No No Leaked 1 0 0 Norway
cock.li 4.0 / 5.0 3.5 / 5.0 3.5 / 5.0 69 (B) 69 (B) 69 (F) 69 (F) No No No No Reject Yes ToDo D A+ A+ B D Yes No Leaked 2 0 0 Romania
startmail.com 4.0 / 5.0 3.5 / 5.0 3.5 / 5.0 53 (C) X X 53 (C) No No No No Softfail Yes Yes F A+ A+ B F No No Leaked 1 0 0 Netherlands
danwin1210.me 0.0 / 5.0 4.0 / 5.0 3.5 / 5.0 69 (B) 69 (B) 69 (B) 69 (B) No No No Quarantine Reject Yes ToDo D- A+ A+ B A Yes No Partially 1 0 0 France
freenet.de 5.0 / 5.0 3.5 / 5.0 2.0 / 5.0 69 (B) 69 (B) 69 (B) Timeout No No No No Softfail No No C A+ A+ C A+ No Yes No 134 543 149 Germany
schokokeks.org 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 ToDo ToDo ToDo B No Queued Yes No Reject No ToDo B+ A+ A+ B A Yes Yes Leaked 1 0 0 Germany
arcor.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 53 (F) X X Timeout No No No No Reject No ToDo F A- A- C D No No Leaked 79 296 91 Netherlands
skymail.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 ToDo ToDo ToDo ToDo No No No No Reject No ToDo F A A+ B F No No Leaked 0 3 2 Germany
ok.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 68 (F) 68 (F) 88 (A+) 88 (A+) No No No No Reject No ToDo F B B C F No No Leaked 37 208 49 Germany
firemail.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 ToDo ToDo ToDo ToDo No No No No Softfail No ToDo F F B B F No No Leaked 4 13 8 United States Advertising
netcourrier.com 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 69 (B) 69 (B) 69 (B) 41 (F) No No No No Reject No ToDo D B D F D No No Leaked 1 19 1 France
gandi.net 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 69 (B) 69 (B) 69 (B) 69 (B) No No No No Reject No ToDo B- A A C B No No Leaked 2 0 0 France
eclipso.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 69 (B) 69 (B) 69 (B) Timeout No No No No Reject No ToDo C+ A+ A C B No No Leaked 2 0 0 Germany google captcha, Advertising
ownbay.net 4.0 / 5.0 0.0 / 5.0 3.0 / 5.0 84 (A) 94 (A) ? ? No No No No Softfail No ToDo B A+ A+ A A No No Partially 2 5 5 Germany google captcha
t-online.de 4.0 / 5.0 0.0 / 5.0 2.0 / 5.0 53 (C) 53 (C) 53 (M) C No No No No No No No F A A- C F No No Leaked 116 238 91 Germany
emailn.de 4.0 / 5.0 0.0 / 5.0 2.0 / 5.0 X X X F No No No No Reject No ToDo D A A C D No No Leaked 5 35 12 Germany google captcha, Advertising
online.de 4.0 / 5.0 0.0 / 5.0 2.0 / 5.0 53 (C) 53 (C) 53 (C) 69 (B) No No No No No No ToDo F A A B F No No Leaked 105 130 63 Germany 1und1.de
so36.net ToDo ToDo ToDo 84 (A) 84 (A) 84 (A) 84 (A) Yes No No No No ToDo ToDo D+ A+ A+ A D No No Leaked 0 0 0 Germany
immerda.ch ToDo ToDo ToDo 84 (A) 84 (A) 96 (A) Timeout No No No No Softfail ToDo ToDo B+ A A+ A A No No Leaked 0 0 0 Switzerland
tchncs.de ToDo ToDo ToDo 84 (A) 84 (M) Timeout No TLS No No No Report only Neutral ToDo ToDo B A+ A+ A+ A No No Partially 3 0 0 Germany
hosted.mailcow.de ToDo ToDo ToDo 69 (B) 69 (B) 69 (B) 69 (B) Yes No No No Neutral ToDo ToDo B A+ A C B No No No 1 0 0 Germany
tuffmail.com ToDo ToDo ToDo 69 (B) 69 (B) 69 (B) Timeout No No No No Softfail ToDo ToDo D A+ A+ B D No No Leaked 0 0 0 United States
zoho.eu ToDo ToDo ToDo 53 (F) 53 (F) 53 (F) 53 (F) No No No Quarantine Reject ToDo ToDo F A+ A+ B D No No Leaked 13 22 11 Switzerland
zoho.com 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 F F F F No No No Reject Reject No ToDo F A+ A+ C D No No Leaked 18 42 15 United States
mail.com ToDo ToDo ToDo C C C Timeout No No Testing No Reject ToDo No D- A+ A+ C D Yes No Leaked 51 113 31 United States
mail.lilo.org ToDo ToDo ToDo F X X C No No No Report only Neutral ToDo ToDo D+ A+ A C D No No Leaked 2 4 0 France
aikq.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 B B B B No No No No Softfail ToDo ToDo D A+ A+ C D No No Leaked 1 7 3 Germany
virginmedia.com ToDo ToDo ToDo C C C F No No No Quarantine Softfail ToDo ToDo F A B B D No No Leaked 33 64 32 Netherlands
pobox.com ToDo ToDo ToDo B B B Timeout No No No Report only Neutral ToDo Yes B+ A A+ B A No No Leaked 4 3 2 United States
strato.de ToDo ToDo ToDo C C C F No No No No No ToDo ToDo F A+ A+ C F No No Leaked 14 15 10 Germany
mail.ru ToDo ToDo ToDo Timeout F F Timeout No No No Reject Softfail ToDo Yes C+ A+ A C A No No Leaked 38 98 39 Russian Federation
countermail.com ToDo ToDo ToDo F X F B No No No No Softfail ToDo ToDo C+ C B B D Yes No Leaked 0 0 0 Sweden
biomail.de ToDo ToDo ToDo A A ToDo ToDo No No No No Reject ToDo ToDo F A A C F No No Leaked 0 0 0 Germany
greensta.de ToDo ToDo ToDo B B F B No No No Disabled Softfail ToDo ToDo F A A+ B F No No Leaked 6 2 1 Germany
yahoo.com 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 53 (C) 53 (C) 53 (C) Timeout No Yes Testing Reject Neutral Yes Yes F A A+ C D No No Partially 13 133 15 United States
unseen.is ToDo ToDo ToDo C C F F No No No No Reject ToDo ToDo C+ A+ A+ A+ D Yes No Leaked 0 0 0 Iceland
vodafone.de ToDo ToDo ToDo F Timeout Timeout F No No No No Reject ToDo ToDo F B C C D No No Leaked 36 90 40 Netherlands
cryptix.de ToDo ToDo ToDo M M M C No No No No No ToDo ToDo F C A B D No No Leaked 3 0 0 Germany
aktivix.org ToDo ToDo ToDo F F X Timeout No No No No Softfail ToDo ToDo F A+ A+ A+ F No No Leaked 2 0 0 United States
neomailbox.com ToDo ToDo ToDo C F F Timeout No No No No Softfail ToDo ToDo F A B A F No No Leaked 0 0 0 Switzerland
goneo.de ToDo ToDo ToDo F F C C No No No No No ToDo ToDo D A+ A C D No No Leaked 14 16 10 Germany
bluewin.ch ToDo ToDo ToDo F F C C No No No No Softfail ToDo ToDo F A A+ B F No No Leaked 43 161 44 Switzerland
artikel-140.nl ToDo ToDo ToDo F X A No TLS No No No Quarantine Reject ToDo ToDo D+ A+ A+ A+ D No No Leaked 2 0 0 Netherlands
free.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 F F A No TLS No No No No Softfail No ToDo F B F F F No No Leaked 0 0 0 Germany greylister does not support TLS
inbox.com ToDo ToDo ToDo C X F No TLS No No No No Softfail ToDo ToDo F B A C F No No Leaked 11 9 5 United States
one.com ToDo ToDo ToDo F F F F No No No Report only Softfail ToDo ToDo C- A+ A+ B D No No Leaked 21 52 20 Denmark
simbamail.de 0.0 / 5.0 4.0 / 5.0 2.5 / 5.0 No TLS No TLS No TLS No TLS No No No Yes Pass No Yes B+ A A+ A A Yes Yes Partially Leaked 0 0 0 Germany google captcha
safe-mail.net 3.0 /5.0 3.0 / 5.0 1.0 / 5.0 ? ? ? No TLS No No No No Syntax Error ToDo ToDo F B A F F No No Leaked 0 0 0 Israel
islandnet.com ToDo ToDo ToDo F F F Timeout No No No Report only Neutral ToDo ToDo F B A F F No No Leaked 3 4 3 Canada
cox.net ToDo ToDo ToDo F F F No TLS No No No No Neutral ToDo ToDo F No HTTPS B No HTTPS D No No Leaked 180 350 112 United States
teknik.io ToDo ToDo ToDo F F F F No No No Quarantine Softfail ToDo ToDo A+ B A B A Yes No Leaked 2 0 0 Netherlands
mc-free.com 3.0 / 5.0 0.0 / 5.0 1.0 / 5.0 ToDo ToDo ToDo ToDo ToDo No No No No No ToDo F A A+ B F No No Leaked 5 9 5 Germany
rediffmail.com 3.0 / 5.0 4.5 / 5.0 3.5 / 5.0 ToDo ToDo ToDo ToDo No No No Report only Softfail Yes ToDo F F ToDo Timeout E No No Leaked 5 8 5 India
anpa.de 3.0 / 5.0 3.0 / 5.0 1.0 / 5.0 B X B No TLS No No No No Softfail No ToDo F C C F F No No Leaked 4 19 11 Netherlands Hostname Mismatch
netcup.net/de ToDo ToDo ToDo F F F F No No No No No ToDo ToDo F A A B F No No Leaked 2 0 0 Germany
nixnet.email ToDo ToDo ToDo 69 (B) 69 (B) X 69 (F) No No Yes Reject Reject ToDo ToDo A+ A+ A+ A+ A Yes Yes No 0 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 test 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: 2019-12-12

Changes:


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