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Each mailbox now, against Office Sentry's collection from 35 days earlier (2026-09-07), fastest-growing first. 1 mailbox is full or forecast to fill within 90 days at its current rate: turn on the archive (or auto-expanding archiving) or clear old mail before sending stops.

Mailbox	Type	Size now	30‑day change	Growth a month	Stops sending at	Forecast full
evie.davis@contoso.example high	User	47.2 GB	+3.3 GB	+2.8 GB	49.5 GB	5 Nov 2026
noah.clark@contoso.example	User	21.2 GB	+2.5 GB	+2.2 GB	49.5 GB	6 Nov 2027
lily.harrison@contoso.example	User	26.6 GB	+2.1 GB	+1.8 GB	49.5 GB	25 Oct 2027
sophie.taylor@contoso.example	User	23.4 GB	+2.1 GB	+1.8 GB	49.5 GB	21 Dec 2027
owen.taylor@contoso.example	User	18.8 GB	+2.1 GB	+1.8 GB	49.5 GB	14 Mar 2028
olivia.wilson@contoso.example	User	24.6 GB	+2.0 GB	+1.7 GB	49.5 GB	29 Dec 2027
olivia.ward@contoso.example	User	12.5 GB	+1.5 GB	+1.3 GB	49.5 GB	18 Feb 2029
bobby.marsh@contoso.example	User	25.0 GB	+1.5 GB	+1.3 GB	49.5 GB	7 May 2028
oliver.hill@contoso.example	User	45.6 GB	+1.4 GB	+1.2 GB	49.5 GB	20 Jan 2027
megan.smith@contoso.example	User	26.9 GB	+1.3 GB	+1.2 GB	49.5 GB	22 May 2028
ella.thomas@contoso.example	User	26.6 GB	+1.1 GB	+934.4 MB	49.5 GB	2 Nov 2028
rhys.evans@contoso.example	User	3.0 GB	+334.7 MB	+286.9 MB	49.5 GB	2 Jun 2040
jacob.johnson@contoso.example	User	7.5 GB	+305.9 MB	+262.2 MB	49.5 GB	4 Apr 2040
annabel.fraser@contoso.example	User	13.1 GB	+267.6 MB	+229.3 MB	49.5 GB	21 Feb 2040
william.clark@contoso.example	User	2.1 GB	+263.1 MB	+225.5 MB	49.5 GB	10 Jun 2044
joseph.morris@contoso.example	User	25.1 GB	+256.9 MB	+220.2 MB	49.5 GB	9 Feb 2036
jack.white@contoso.example	User	22.3 GB	+228.0 MB	+195.4 MB	49.5 GB	1 Jul 2038
accounts@contoso.example	Shared	44.8 GB	No change	No change	49.5 GB
priya.hughes@contoso.example	User	28.1 GB			49.5 GB
reception@contoso.example	Shared	18.9 GB	No change	No change	49.5 GB
info@contoso.example	Shared	6.4 GB	No change	No change	49.5 GB
william.allen@contoso.example	User	4.1 GB			49.5 GB
boardroom@contoso.example	Room	102.4 MB	No change	No change	49.5 GB
isla.scott@fabrikam.example	User	30.9 GB	+4.3 GB	+3.7 GB	49.5 GB	11 Mar 2027
owen.turner@fabrikam.example	User	31.2 GB	+3.7 GB	+3.2 GB	49.5 GB	1 Apr 2027
noah.harris@fabrikam.example	User	31.0 GB	+3.7 GB	+3.2 GB	49.5 GB	4 Apr 2027
leo.harrison@fabrikam.example	User	28.2 GB	+3.7 GB	+3.1 GB	49.5 GB	4 May 2027
callum.turner@fabrikam.example	User	27.7 GB	+3.6 GB	+3.1 GB	49.5 GB	11 May 2027
aisha.brown@fabrikam.example high	User	47.2 GB	+3.3 GB	+2.8 GB	49.5 GB	5 Nov 2026
noah.wood@fabrikam.example	User	26.6 GB	+3.2 GB	+2.7 GB	49.5 GB	20 Jun 2027
owen.smith@fabrikam.example	User	23.1 GB	+2.8 GB	+2.4 GB	49.5 GB	10 Sep 2027
jack.roberts@fabrikam.example	User	21.5 GB	+2.6 GB	+2.2 GB	49.5 GB	28 Oct 2027
jack.lee@fabrikam.example	User	22.3 GB	+2.5 GB	+2.1 GB	49.5 GB	4 Nov 2027
olivia.taylor@fabrikam.example	User	24.0 GB	+2.2 GB	+1.9 GB	49.5 GB	29 Nov 2027
owen.scott@fabrikam.example	User	18.2 GB	+2.0 GB	+1.7 GB	49.5 GB	12 Apr 2028
megan.green@fabrikam.example	User	16.2 GB	+1.9 GB	+1.7 GB	49.5 GB	31 May 2028
thomas.allen@fabrikam.example	User	20.6 GB	+1.9 GB	+1.6 GB	49.5 GB	9 Apr 2028
ava.thomas@fabrikam.example	User	16.1 GB	+1.8 GB	+1.5 GB	49.5 GB	31 Jul 2028
rhys.scott@fabrikam.example	User	12.8 GB	+1.7 GB	+1.4 GB	49.5 GB	21 Nov 2028
ruby.davies@fabrikam.example	User	24.4 GB	+1.5 GB	+1.3 GB	49.5 GB	1 Jun 2028
thomas.robinson@fabrikam.example	User	45.6 GB	+1.4 GB	+1.2 GB	49.5 GB	20 Jan 2027
henry.roberts@fabrikam.example	User	18.5 GB	+1.3 GB	+1.1 GB	49.5 GB	27 Jan 2029
ruby.clark@fabrikam.example	User	16.1 GB	+1.3 GB	+1.1 GB	49.5 GB	5 Apr 2029
owen.patel@fabrikam.example	User	20.4 GB	+1.2 GB	+1.0 GB	49.5 GB	20 Jan 2029
ella.evans@fabrikam.example	User	17.2 GB	+1.2 GB	+1.0 GB	49.5 GB	11 May 2029
george.williams@fabrikam.example	User	23.6 GB	+1.2 GB	+1.0 GB	49.5 GB	16 Nov 2028
lily.khan@fabrikam.example	User	23.6 GB	+1.2 GB	+1.0 GB	49.5 GB	17 Nov 2028
ava.moore@fabrikam.example	User	18.1 GB	+1.1 GB	+952.7 MB	49.5 GB	21 Jul 2029
william.lewis@fabrikam.example	User	12.9 GB	+1.0 GB	+902.7 MB	49.5 GB	12 Mar 2030
rhys.walker@fabrikam.example	User	25.4 GB	+1.0 GB	+892.5 MB	49.5 GB	17 Jan 2029
george.baker@fabrikam.example	User	7.1 GB	+949.1 MB	+813.5 MB	49.5 GB	28 Feb 2031
ava.jackson@fabrikam.example	User	30.1 GB	+924.0 MB	+792.0 MB	49.5 GB	3 Nov 2028
ethan.jones@fabrikam.example	User	12.6 GB	+906.1 MB	+776.6 MB	49.5 GB	9 Oct 2030
thomas.johnson@fabrikam.example	User	10.4 GB	+854.9 MB	+732.7 MB	49.5 GB	7 Apr 2031
george.walker@fabrikam.example	User	20.2 GB	+826.4 MB	+708.3 MB	49.5 GB	6 Apr 2030
aaron.smith@fabrikam.example	User	15.5 GB	+794.6 MB	+681.1 MB	49.5 GB	23 Dec 2030
amelia.khan@fabrikam.example	User	12.2 GB	+748.5 MB	+641.6 MB	49.5 GB	2 Sep 2031
lily.white@fabrikam.example	User	14.5 GB	+740.8 MB	+634.9 MB	49.5 GB	3 Jun 2031
rhys.hall@fabrikam.example	User	23.8 GB	+732.2 MB	+627.6 MB	49.5 GB	21 Mar 2030
priya.williams@fabrikam.example	User	8.4 GB	+603.6 MB	+517.4 MB	49.5 GB	16 Jun 2033
jack.ward@fabrikam.example	User	18.8 GB	+576.8 MB	+494.4 MB	49.5 GB	3 Jan 2032
freya.evans@fabrikam.example	User	12.3 GB	+503.8 MB	+431.8 MB	49.5 GB	9 Jan 2034
arthur.lee@fabrikam.example	User	4.9 GB	+503.0 MB	+431.1 MB	49.5 GB	24 Jun 2035
ben.okafor@fabrikam.example	User	7.4 GB	+457.0 MB	+391.7 MB	49.5 GB	24 Oct 2035
owen.khan@fabrikam.example	User	10.7 GB	+438.8 MB	+376.1 MB	49.5 GB	14 Jun 2035
ella.hughes@fabrikam.example	User	2.7 GB	+327.7 MB	+280.9 MB	49.5 GB	20 Oct 2040
anna.kowalski@fabrikam.example	User	15.0 GB	+307.5 MB	+263.5 MB	49.5 GB	14 Oct 2037
chloe.jackson@fabrikam.example	User	3.9 GB	+281.1 MB	+240.9 MB	49.5 GB	9 Sep 2042
ruby.wood@fabrikam.example	User	12.7 GB	+260.5 MB	+223.3 MB	49.5 GB	20 Aug 2040
zara.edwards@fabrikam.example	User	19.2 GB	+196.9 MB	+168.8 MB	49.5 GB	10 Nov 2041
arthur.williams@fabrikam.example	User	3.9 GB	+159.3 MB	+136.6 MB	49.5 GB	14 Nov 2054
megan.king@fabrikam.example	User	4.9 GB	+100.5 MB	+86.2 MB	49.5 GB	22 Apr 2070
amelia.jackson@fabrikam.example	User	8.7 GB	+89.2 MB	+76.4 MB	49.5 GB	3 Sep 2071
lily.watson@fabrikam.example	User	8.0 GB	+82.3 MB	+70.6 MB	49.5 GB	12 Mar 2076
william.wood@fabrikam.example	User	2.1 GB	+63.7 MB	+54.6 MB	49.5 GB	25 Oct 2099
accounts@fabrikam.example	Shared	44.8 GB	No change	No change	49.5 GB
owen.robinson@fabrikam.example	User	27.4 GB			49.5 GB
reception@fabrikam.example	Shared	18.9 GB	No change	No change	49.5 GB
oscar.smith@fabrikam.example	User	9.6 GB			49.5 GB
info@fabrikam.example	Shared	6.4 GB	No change	No change	49.5 GB
boardroom@fabrikam.example	Room	102.4 MB	No change	No change	49.5 GB
owen.white@northwindtraders.example	User	28.3 GB	+3.4 GB	+2.9 GB	49.5 GB	19 May 2027
hannah.robinson@northwindtraders.example high	User	47.2 GB	+3.3 GB	+2.8 GB	49.5 GB	5 Nov 2026
amelia.watson@northwindtraders.example	User	27.3 GB	+3.3 GB	+2.8 GB	49.5 GB	5 Jun 2027
sophie.smith@northwindtraders.example	User	29.7 GB	+3.3 GB	+2.8 GB	49.5 GB	12 May 2027
alfie.scott@northwindtraders.example	User	22.4 GB	+2.2 GB	+1.9 GB	49.5 GB	8 Dec 2027
isla.evans@northwindtraders.example	User	30.5 GB	+2.1 GB	+1.8 GB	49.5 GB	20 Aug 2027
george.roberts@northwindtraders.example	User	15.6 GB	+1.9 GB	+1.6 GB	49.5 GB	4 Jul 2028
megan.lee@northwindtraders.example	User	31.4 GB	+1.6 GB	+1.3 GB	49.5 GB	19 Nov 2027
hannah.patel@northwindtraders.example	User	12.3 GB	+1.5 GB	+1.3 GB	49.5 GB	9 Mar 2029
olivia.smith@northwindtraders.example	User	45.6 GB	+1.4 GB	+1.2 GB	49.5 GB	20 Jan 2027
robert.hughes@northwindtraders.example	User	19.2 GB	+1.2 GB	+1012.2 MB	49.5 GB	18 Apr 2029
leo.evans@northwindtraders.example	User	26.9 GB	+1.1 GB	+943.8 MB	49.5 GB	17 Oct 2028
mia.hughes@northwindtraders.example	User	20.4 GB	+1.0 GB	+893.8 MB	49.5 GB	9 Jul 2029
grace.wilson@northwindtraders.example	User	9.3 GB	+1.0 GB	+893.7 MB	49.5 GB	26 Jul 2030
grace.taylor@northwindtraders.example	User	24.7 GB	+1010.9 MB	+866.5 MB	49.5 GB	10 Mar 2029
george.robinson@northwindtraders.example	User	11.4 GB	+936.7 MB	+802.9 MB	49.5 GB	7 Oct 2030
leo.wright@northwindtraders.example	User	14.5 GB	+893.2 MB	+765.6 MB	49.5 GB	15 Aug 2030
ella.baker@northwindtraders.example	User	21.0 GB	+861.1 MB	+738.1 MB	49.5 GB	9 Jan 2030
jacob.hughes@northwindtraders.example	User	19.9 GB	+815.5 MB	+699.0 MB	49.5 GB	4 May 2030
ruby.taylor@northwindtraders.example	User	9.7 GB	+793.8 MB	+680.4 MB	49.5 GB	13 Sep 2031
zara.jackson@northwindtraders.example	User	8.3 GB	+768.8 MB	+659.0 MB	49.5 GB	12 Jan 2032
arthur.evans@northwindtraders.example	User	4.9 GB	+657.4 MB	+563.5 MB	49.5 GB	6 Jun 2033
owen.taylor@northwindtraders.example	User	4.5 GB	+597.6 MB	+512.2 MB	49.5 GB	3 Mar 2034
olivia.scott@northwindtraders.example	User	19.3 GB	+593.4 MB	+508.6 MB	49.5 GB	9 Oct 2031
ruby.hill@northwindtraders.example	User	14.5 GB	+446.2 MB	+382.5 MB	49.5 GB	21 Jun 2034
alfie.roberts@northwindtraders.example	User	9.9 GB	+302.7 MB	+259.4 MB	49.5 GB	19 Aug 2039
rhys.moore@northwindtraders.example	User	2.5 GB	+280.7 MB	+240.6 MB	49.5 GB	18 Mar 2043
thomas.clarke@northwindtraders.example	User	23.7 GB	+242.6 MB	+208.0 MB	49.5 GB	20 Mar 2037
harry.lee@northwindtraders.example	User	11.4 GB	+233.2 MB	+199.9 MB	49.5 GB	25 Oct 2042
rhys.clark@northwindtraders.example	User	5.5 GB	+226.3 MB	+194.0 MB	49.5 GB	5 Nov 2045
leo.morris@northwindtraders.example	User	1.5 GB	+219.4 MB	+188.1 MB	49.5 GB	24 Mar 2048
maya.martin@northwindtraders.example	User	6.2 GB	+189.5 MB	+162.4 MB	49.5 GB	19 Mar 2049
ann.patel@northwindtraders.example	User	7.3 GB	+149.3 MB	+128.0 MB	49.5 GB	10 Jul 2054
ethan.green@northwindtraders.example	User	10.1 GB	+103.5 MB	+88.8 MB	49.5 GB	7 Feb 2064
accounts@northwindtraders.example	Shared	44.8 GB	No change	No change	49.5 GB
aaron.watson@northwindtraders.example	User	19.7 GB			49.5 GB
imogen.edwards@northwindtraders.example	User	19.5 GB			49.5 GB
reception@northwindtraders.example	Shared	18.9 GB	No change	No change	49.5 GB
info@northwindtraders.example	Shared	6.4 GB	No change	No change	49.5 GB
boardroom@northwindtraders.example	Room	102.4 MB	No change	No change	49.5 GB

Built from each client's latest collection with the same report as the client's own page. Select a client's name to open its report.

All clients

Mailbox size trend

Growth by mailbox 121