MECSA CONFIDENTIAL DELIVERY MECSA PHISHING AND IDENTITY THEFT MECSA INTEGRITY OF MESSAGES Email Security Grader IMAPS POP3S SMTPS SMTP DANE CAA SPF DKIM DMARC Mozilla Observatory SSL Labs htbridge Crypt Check security headers HSTS preload list Referrers leaked Cookies Third-party requests Third-parties contacted Comments
mailbox.org 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 87% A A A A Yes No Yes Yes Disabled B A+ A+ A+ A Yes Partially 2 0 0 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 A+ A+ A+ A+ A+ Yes No 0 0 0
systemli.org 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 93% B B B B Yes Yes Yes Yes Disabled A+ A+ A+ A A Yes No 0 0 0
tutanota.com 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 91% X X X B Yes No Yes Yes Disabled B A+ A+ B B Yes Leaked 2 0 0
disroot.org 4.5 / 5.0 5.0 / 5.0 5.0 / 5.0 94% M M Timeout Timeout No No Yes Yes Disabled B A+ A+ A+ A Yes No 1 0 0
protonmail.com 4.5 / 5.0 5.0 / 5.0 5.0 / 5.0 91% X X X X No No Yes Yes Yes B A+ A+ A B Yes Leaked 2 4 2
riseup.net 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 91% Timeout Timeout Timeout Timeout No Yes Yes Yes disabled B A+ A+ Timeout A Yes No 0 0 0
gmail.com 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 88% C C C C No No Yes Yes Disabled A- A A+ C A Yes Leaked 2 5 3
mailfence.com 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 91% A A A A No No Yes Yes Disabled D+ A+ A+ A+ F Yes Error Error Error Error
kolabnow.com 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 85% Timeout X X A Yes Yes Yes Yes Yes B+ A+ A+ A+ A No No 3 1 1
lavabit.com 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 86% B B B Timeout Yes No Yes Yes Yes F A A C F No Leaked 0 0 0
posteo.de 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 91% C C C F Yes Yes Yes Yes Disabled B+ A+ A+ A+ A Yes No 1 0 0
mailjunky.de 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 77% X X X Timeout No No Yes Yes F B A+ C C No Leaked 4 13 7
directbox.com 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 91% C C F F Yes No Yes Yes Disabled B+ A A+ A A No Leaked 1 0 0
mail.de 5.0 / 5.0 5.0 / 5.0 5.0 / 5.0 66% F F F Timeout Yes Yes Yes Yes Disabled B A+ A+ B A Yes Leaked 4 10 6
fastmail.com 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 92% C C C Timeout No No Yes Yes Disabled A+ A+ A C A Yes Leaked 4 4 2 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 D A- A C A No Partially 136 346 103
5x2.de 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 91% C C C F No Yes Yes Yes Yes F A- A B F No Leaked 8 4 2
mail.yandex.ru 4.0 / 5.0 4.5 / 5.0 5.0 / 5.0 91% F F F Timeout No Yes No ToDo Disabled B- A A+ F B No Leaked 9 45 2
hushmail.com 4.0 / 5.0 3.5 / 5.0 3.5 / 5.0 91% B B B Timeout No No Yes Yes No D A A+ B B No Leaked 2 0 0
runbox.com 4.0 / 5.0 3.5 / 5.0 3.5 / 5.0 93% C C C C No No Yes Yes No B A+ A+ C A No Leaked 1 0 0
cock.li 4.0 / 5.0 3.5 / 5.0 3.5 / 5.0 80% B B F F No No No Yes No D A+ A+ B D Yes Leaked 4 2 1
startmail.com 4.0 / 5.0 3.5 / 5.0 3.5 / 5.0 91% F X X C No No Yes Yes No F A+ A+ B F No Leaked 1 0 0
outlook.com 3.0 / 5.0 4.5 / 5.0 3.5 / 5.0 78% C C X M No No Yes Yes Disabled D A A+ C C No Leaked 3 42 5
danwin1210.me 0.0 / 5.0 4.0 / 5.0 3.5 / 5.0 78% B B B Timeout No No Yes Yes Yes D- A+ A+ B A Yes Partially 1 0 0
gmx.de 5.0 / 5.0 3.5 / 5.0 2.0 / 5.0 90% C C C C Yes No Yes No No C A+ A+ C B Yes Partially 60 227 61
web.de 5.0 / 5.0 3.5 / 5.0 2.0 / 5.0 90% C C X C Yes No Yes No No C A+ A+ C B Yes Partially 55 210 57
openmailbox.org 3.0 / 5.0 4.0 / 5.0 2.5 / 5.0 93% B X F M No No Yes No Disabled B A+ A+ B B No Leaked 0 2 1 Hostname Mismatch on mail.openmailbox.org
arcor.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 83% F X X Timeout No No Yes No No F A- A- C D No Leaked 79 296 91
skymail.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 57% ToDo ToDo ToDo ToDo No No Yes No No F A A+ B F No Leaked 0 3 2
ok.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 89% F F B B No No Yes No No F B B C F No Leaked 37 208 49
firemail.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 57% ToDo ToDo ToDo ToDo No No Yes No No F F B B F No Leaked 4 13 8 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 D B D F D No Leaked 1 19 1
gandi.net 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 95% C C C B No No Yes No No B- A A C B No Leaked 2 0 0
eclipso.de 4.0 / 5.0 3.0 / 5.0 2.0 / 5.0 62% B B B Timeout No No Yes No No C+ A+ A C B No Leaked 2 0 0 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 C A+ A+ C A+ No No 134 543 149
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 B A+ A+ A A No Partially 2 5 5 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 F A A- C F No Leaked 116 238 91
emailn.de 4.0 / 5.0 0.0 / 5.0 2.0 / 5.0 62% X X X F No No Yes No No D A A C D No Leaked 5 35 12 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 F A A B F No Leaked 105 130 63 1und1.de
freemail.ox.io ToDo ToDo ToDo 91% A X A A Yes No Yes ToDo No B A+ A+ A+ B No Leaked 0 0 0
so36.net ToDo ToDo ToDo 71% X A A A Yes No No ToDo No D+ A+ A+ A D No Leaked 0 0 0
boum.org ToDo ToDo ToDo 73% A A A Timeout No No No ToDo No D+ A+ A Timeout D No Leaked 0 0 0
immerda.ch ToDo ToDo ToDo 93% A A F Timeout No No Yes ToDo No B+ A A+ A A No Leaked 0 0 0
tchncs.de ToDo ToDo ToDo A M Timeout No TLS No No Yes ToDo No B A+ A+ A+ A No Partially 3 0 0
hosted.mailcow.de ToDo ToDo ToDo 93% B B B C Yes No Yes ToDo No B A+ A C B No No 1 0 0
icloud.com ToDo ToDo ToDo 84% C X X ToDo No No Yes ToDo No C+ A- A+ B B No Leaked 3 50 4
zoho.eu ToDo ToDo ToDo 86% B B B B No No Yes ToDo No D A+ A+ B D No Leaked 13 22 11
mail.com ToDo ToDo ToDo 90% C C C Timeout No No Yes ToDo No D- A+ A+ C D Yes Leaked 51 113 31
mail.lilo.org ToDo ToDo ToDo 71% F X X C No No No ToDo No D+ A+ A C D No Leaked 2 4 0
vmail.me ToDo ToDo ToDo 87% B B B B No No Yes ToDo No D A+ A+ B D No Leaked 2 0 0
autistici.org ToDo ToDo ToDo 93% X B B B No No Yes ToDo No C A A B B No Leaked 0 0 0
systemausfall.org ToDo ToDo ToDo 69% A A X No TLS No Yes No ToDo No B A+ A+ A+ A No No 1 0 0 Hostname Mismatch on MX
aikq.de ToDo ToDo ToDo 66% M B B B No No Syntax error ToDo No D A+ A+ C D No Leaked 1 7 3 Hostname Mismatch on mx20.aikq.de
virginmedia.com ToDo ToDo ToDo 66% C C C F No No Yes ToDo Yes F A B B D No Leaked 33 64 32
pobox.com ToDo ToDo ToDo 91% C C C Timeout No No Yes ToDo No F A A B F No Leaked 4 3 2
strato.de ToDo ToDo ToDo 66% C C C F No No No ToDo No F A+ A+ C F No Leaked 14 15 10
mail.ru ToDo ToDo ToDo 78% Timeout F F Timeout No No Yes ToDo Yes C+ A+ A C A No Leaked 38 98 39
countermail.com ToDo ToDo ToDo 96% F X F B No No Yes ToDo No C+ C B B D Yes Leaked 0 0 0
biomail.de ToDo ToDo ToDo 60% A A ToDo ToDo No No No ToDo No F A A C F No Leaked 0 0 0
greensta.de ToDo ToDo ToDo 91% B B F B No No No ToDo No F A A+ B F No Leaked 6 2 1
yahoo.com ToDo ToDo ToDo 91% C C C Timeout No No Yes ToDo Yes F A A+ C D No Partially 13 133 15
unseen.is ToDo ToDo ToDo 93% C C F F No No Yes ToDo No C+ A+ A+ A+ D Yes Leaked 0 0 0
1984.is ToDo ToDo ToDo 91% F F Timeout Timeout No No Yes ToDo No C- A+ A+ B B No Leaked 3 0 0
vodafone.de ToDo ToDo ToDo 83% F Timeout Timeout F No No Yes ToDo No D B C C D No Leaked 36 90 40
cryptix.de ToDo ToDo ToDo 68% M M M C No No No ToDo No F C A B D No Leaked 3 0 0
aktivix.org ToDo ToDo ToDo 89% F F X Timeout No No Yes ToDo No F A+ A+ A+ F No Leaked 2 0 0
neomailbox.com ToDo ToDo ToDo 79% C F F Timeout No No Yes ToDo No F A B A F No Leaked 0 0 0
goneo.de ToDo ToDo ToDo 66% F F C C No No No ToDo No D A+ A C D No Leaked 14 16 10
bluewin.ch ToDo ToDo ToDo 91% F F C C No No Yes ToDo No F A A+ B F No Leaked 43 161 44
artikel-140.nl ToDo ToDo ToDo 86% F X A No TLS No No Yes ToDo Yes D+ A+ A+ A+ D No Leaked 2 0 0
free.de ToDo ToDo ToDo 93% F F A No TLS No No No ToDo No F B F F F No Leaked 0 0 0 greylister does not support TLS
inbox.com ToDo ToDo ToDo 78% C X F No TLS No No Yes ToDo No F B A C F No Leaked 11 9 5
one.com ToDo ToDo ToDo 91% F F F F No No Yes ToDo No C- A+ A+ B D No Leaked 21 52 20
safe-mail.net ToDo ToDo ToDo 61% ? ? ? No TLS No No Syntax Error ToDo No F B A F F No Leaked 0 0 0
islandnet.com ToDo ToDo ToDo 58% F F F Timeout No No No ToDo No F B A F F No Leaked 3 4 3
cox.net ToDo ToDo ToDo 90% F F F No TLS No No No ToDo No F No HTTPS B No HTTPS D No Leaked 180 350 112
teknik.io ToDo ToDo ToDo 86% F F F F No No Yes ToDo No A+ B A B A Yes Leaked 2 0 0
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 F A A+ B F No Leaked 5 9 5
simbamail.de 3.0 / 5.0 0.0 / 5.0 1.0 / 5.0 ToDo ToDo ToDo ToDo No No No No No F A A+ B F No Leaked 1 8 7
rediffmail.com 3.0 / 5.0 4.5 / 5.0 3.5 / 5.0 78% ToDo ToDo ToDo ToDo No No Yes Yes Monitoring F F ToDo Timeout E No Leaked 5 8 5
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 F C C F F No Leaked 4 19 11 Hostname Mismatch

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.

Please send comments and contributions to: a2e7ff3a@dismail.de

If you have an account on one of the servers (with a missing MECSA score), it would be great if you could run a MECSA test and send me the ID of the result. Thank you!

Last update: 2018-06-15

Changes:

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